Problems Sending Email – Receiving is Fine

Date: 11/19/19  4 Minutes To Read

If you are unable to send email, but can receive you should first verify that you have your email client configured properly.

Below are the SMTP SSL and Non SSL settings. you should use one of the following:

SMTP Settings
Non SSL Settings
SSL Settings
Incoming Server:
Outgoing Server:
Username: Your full e-mail address
Password: Your e-mail account password
Incoming Port: POP3 110 or IMAP 143
Outgoing Mail server (SMTP) Port: 587
SMTP Authentication Required
Secure Authentication or SPA needs to be turned off
Incoming Server:
Outgoing Server:
Username: Your full e-mail address
Password: Your e-mail account password
Incoming Port: POP3 995 or IMAP 993
Outgoing Mail server (SMTP) Port: 465
SMTP Authentication Required
Secure Authentication or SPA needs to be turned off

Port 25 Blocking

If you cannot send mail, the problem is likely a restriction by your ISP (Internet Service Provider) as many block the normal sendmail port 25, due to their own security concerns. This can be the case even if sending was working recently as some ISP’s roll these changes through without warning.

To give you an idea of how common port 25 blocking is, we’ve included below links to a few major ISP’s and their online documentation regarding port 25 blocking:

Comcast: Why is Port 25 for Email Submission Not Supported?
Verizon: – Re-configure Your Email Settings to Send Email

Checking if Port 25 is blocked

For the average user, the easiest way to find out if port 25 is being blocked is to contact your ISP and ask them. For the advanced user, we’ve included directions below to test port 25 blocking via the command line.

To test if port 25 is blocked, open your command line on your local computer. For windows users, you can access this via start > run > cmd. Mac users can use the “Terminal” application. Once on the command line, type: (Note! Be sure that you replace with your actual domain name.)

telnet 25

Please note: Telnet is disabled on newer versions of Microsoft Windows. If you receive an error similar to,”Windows cannot find ‘telnet‘”, you may need to enable telnet. Please see the full guide on enabling telnet on a Windows computer.

If you get no response or a failure, port 25 blocking is the likely issue. It is NOT port 25 blocking if you receive a response similar to this: 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.

Port 25 blocking – Fixes

If your ISP does block port 25, you can work around it in either of three ways:

The Preferred Solution

As your ISP is blocking port 25, the preferred solution is to use the outgoing mail server provided by your ISP. As each Internet Service Provider has different settings you will need to use (such as username and password, smtp server…), you will need to contact your ISP for the correct settings. We do have alternate solutions to this which involve going over port 465 or 587 instead of 25, however if your ISP begins to block 465 or 587 in the future, you will once again be unable to send email.

Alternative Solution #1

Beginning in late March 2010, we are updating many of our servers to run SMTP over port 587 as well as port 25. If your ISP is blocking port 25, simply change your SMTP port number to 587. This setting is usually found in the advanced settings of your email client. Please see the end of this article for more details.

Alternative Solution #2

Use the secure, or SSL, port for outgoing mail. This will involve selecting the setting “this server requires a secure connection (SSL)” in your mail program. You only need to make this change for the outgoing mail server. Once you check that box, then change the port listing from 25 to 465 and save the changes. These settings are usually found in the advanced settings of your email client. Please see the end of this article for more details.

You will also want to change the outgoing server name to, secure## being the secure alternative of the actual server you are on. For example, if your Welcome Email states that your account is on, your outgoing server name should be

If you are unsure, please contact tech support). This option will work in most cases, however we cannot guarantee that your internet service provider will not some day in the future begin to block port 465. Below are instructions to change the ports for the most common Email Clients.

How to update your SMTP port and SSL settings

In most email clients, the SMTP port and SSL settings are updated on the same settings page, and that page is generally in the advanced settings. The directions below will assist you in finding where to change these settings:

Outlook 2002 and Outlook 2003


  1. Start Outlook.
  2. On the Tools menu, click E-mail Accounts.
  3. Click View or change existing e-mail accounts, and then click Next.
  4. Click your account, and then click Change.
  5. Click More Settings.
  6. Click the Advanced tab.

Outlook 2007


    1. Start Outlook.
    2. On the Tools menu, click Account Settings.
    3. Click to select the target account, and then click Change.
    4. Click More Settings.
    1. Click the Advanced tab.

Outlook 2010


    1. Start Outlook 2010.
    2. Click Account Settings.
    3. Select the email account from the list and click Change.
    4. Click More Settings.
    1. Click the Advanced tab.

Outlook 2013


    1. Start Outlook 2013.
    2. Click Account Settings.
    3. Select the email account from the list and click Change.
    4. Click More Settings.
    1. Click the Advanced tab.

Mac Mail

  1. old_mac_mail_server_setting old_mac_mail_server_settingOpen Mail.
  2. From the Mail menu, choose Preferences.
  3. In the Preferences window, click the Accounts button if it is not already selected.
  4. In the Accounts list, if you have multiple accounts, click your email account.
  5. Click the Server Settings button near the bottom of the pane.

    Note! If you do not see a Server Settings button, click the drop down list, click “Edit Server List…“, and click the “Advanced” tab.

iPhone 6

  1. Unlock your phone and then click on the Settings icon
  2. Mail,Contacts,CalendarsScroll down until you see Mail,Contacts,Calendars, then click on that line
  3. You will see the Accounts list. Click on the email account that you wish to update
  4. You will then see a page with the account name and two switch options for Mail and notes. Click on the Account line at the top to proceed
  5. IMAP/POP3 Account infoYour next screen will display the IMAP/POP3 Account Information
  6. In order to change the Outgoing SMTP Settings, click on the SMTP line
  7. Outgoing server settingsYou will see the SMTP. Click on the Primary Server in order to change the existing settings, or click on Add Server to add a new SMTP server. NOTE: The following steps are for modifying the existing SMTP server.
  8. IMAP/POP3 Account infoThe Outgoing Mail server information will then be displayed. Click on the line that you wish to change, then click on Done in the top right of the screen in order to apply your changes.


  1. thunderbird_smtpOpen Thunderbird
  2. Click the Edit menu, and choose Account Settings
  3. Click Outgoing Server (SMTP)
  4. On the right hand side click the server to modify and click Edit

Thoughts on “Problems Sending Email – Receiving is Fine

    • I’m sorry to see that you are unable to send emails. Is there a particular step in this guide that you are experiencing difficulty with?

  • Hi i am un able to send emails to any addres.this is the message i get Message not sent. Server replied:

    Requested action not taken: mailbox unavailable
    550 Account currently blocked for sending to too many
    invalid recipients

    Kindly assist it almost 1 and half months now

  • I am the secretary of a local historical society and for years I have routinely bulk emailed (BCC) about 110 addresses with information about upcoming events, dues reminders and such. Within the past week or so, I have been getting pop-up notices that I have too many addresses for one email. Is this a new limitation imposed by AOL? Is there a way I can increase the number of allowable addresses? I have worked around the problem by splitting the mailing in half but this is an inconvenience I would prefer to avoid.Thank you for any help/suggestions.

    • Hello. Unfortunately, AOL does not disclose their limitations publicly. This very well may be a limitation imposed by their servers. It is common to impose limitations on the number of recipients in one email to prevent the server from being blacklisted/identified as spam. Breaking up the emails and sending to a smaller number of recipients is the only way around the limitation.

  • I have recently bought wix to host our website using your domain, and have linked it through name pointing. it then gave me an option to use g suite to make a new email which is the current one we are using, however after making the switch to gsuite with our new email the old one doesnt send or recieve messages and when we send emails to it, it claims there isnt a e-mail with that address or some other error. our new email (info@****** currently works with gsuite, however webmail and the old email iman@****** doesnt work. it would be great to hear back from you. 

    Iman Madrasah

    • Considering that the domain is pointed away from our server there is nothing we can do to affect the situation, I suggest contacting Wix or Google support specifically for help with configuration of your DNS records.

  • I have corporative e-mail: **************. But more than 10 days I can’t send emails from that corporative mail adress to the different mail adress on gmail or yahoo. All mail are return without sending. How I can to do?


    Best regards

    Nazim Mustafazade

    • I recommend reviewing the bounce back information that is returned when you attempt to send email from that address. That is the only way to determine why the email is not allowed to send.

      If you are a customer of InMotion Hosting, I recommend contacting our Technical Support to assist you with your specific account privately.

  • hey tnx for the article , but this isn’t helping me

    i  have webmail with domain my isuue is i can send messages succfully but its not recive the reciver

    i checked all your soluation still not working :????


    • If you are not receiving email then your domains MX record is most likely not pointed to your server. You should check to ensure your MX record is pointed to your server and that your MailExchanger setting is set to local.

  • Hi,


    i have recently configured SMTP in my personal set up win 2012 r2, but i m not able to send test mail to my gmail. i have changed outboundaries port to 25, 587 as well. Please advise. Thanks

    • Sorry for the problems with the email client. If you’re having problems with it, make sure to double check and see if you’re using the correct ports. 25 and 587 are the non-secure ports. If you’re using the secure settings, then the port should be 465. You may need to speak with support provided for the email client that you are using.

  • I have had same problem today. The outgoing email was not working in my MS outlook, 
    The reason was not becaues of the port settings. But infact, there was auto Avast Antivirus program downloaded and installed in the computer. Without me knowing. 
    I think it came together with Ccleaner . 
    After I uninstalled that. it worked. 

    Last time i had problem that windows security auto update didnt work properly and kept updating itself over and over without sucessfully finishing. the problem was that my lenovo machine came with Mc Afee anti virus even though i didnt buy or activate it. It kind of created this issue. after uniinstalling it, the things were fine. 
    But to understand that, I first tried everything even formatting and re-installing windows. 

  • I tried the settings and it didn’t work. the problem is i can’t send or receive from emails on the same domain using outlook but i can send and receive using web… Also NOTE that i can send emails to email addresses on other domains successfully on outlook. 

    • If you are still having trouble after running through these settings, you will likely need to contact our Live Support team. They have access to server logs that may be able to provide more information about the issue you’re having.

    • When you are trying to send an email to,,, or if the email fails then you should be receiving a bounce-back message from their email server. This is standard protocol between email servers. It’s possible that the bounce-backs may be getting filtered on your end. We need those bounce-back messages in order to determine why your sent email are failing. If you wish have this issue handled in private, then please submit a ticket (with the bounce-back) to our live technical support team. They can also test sending emails from your server. You can find their contact information at the bottom of this page.

  • In the last day or so I have developed difficulties in sending emails – no problems with receiving emails. What should I do?

    • Follow the troubleshooting steps provided in the article above. If you still have problems, then make sure to provide information on a bounce-backs or error messages you may be seeing when sending your messages. Provide this information in a verified support ticket to our live technical support team. They can look into the matter in more depth for you.

  • Up untill a few days ago my Copier and CCTV DVR were sending out Email when ever required too.. Never had a problem with them.Talking years. Then all at once quit. Same day both of them. Have them set up SMTP. Changed no setting. The only thing I did that day was go into my Router and port Fowarded a new adittional DVR. Pretty sure I didnt change anything else in the Router. I tried everything. Im going to reset the router back to its originial setting tomorrow and start fresh. I have done this many times setting up this kind of stuff. Im not Mr IT guy> could there be a virus in my PC flooding spam out my network. Went as far as to shut down all the PC’s on the network except for the server. I had to keep that running. Shutting that down tomorrow with the rest of the PC’s. Check with comcast and asked them to look at there end and there settings. They didnt see anything. Everything else seems to be acting normal on the network. I have all the settings correct in the SMTP settings. Anybody got any advice, feedback.  Tried and Thanks for any help

    • In regards to tracking down possible spamming going on, I recommend using our guides on locating spam activity in Exim and finding spam script with Exim. They should help you identify if there is spam being sent out from your server. As far as the SMTP you should use the SMTP for the domain that you are sending mail from. For instance, if you are using an email address issued by AOL or Google, you would use or (or whatever SMTP hostname they advise). The main point is that a domain needs to be authorized to send via the SMTP hostname’s server, otherwise it will be rejected. I hope this helps!

  • I am having 587 authenticaiton enabled for sendmail. Infect i am having two ports running 25 and 587. I am able to route through 25 not through 587(error relay denied) can you help me figure out what configuration i should change in sendmail to get this working. please advise.

    • It sounds like you are working with opening and closing ports, but I’m not sure what you are trying to accomplish specifically. Are you having trouble sending email? Which client are you using? What kind of troubleshooting has been done so far?

    • Hello,

      Emails can be bounced back for several reasons. We have an article here that explains how to read the bounceback to see why your messages are being bounced and solutions on how to correct that. You can also contact technical support and they will be able to help you figure out why the messages are bouncing too.

      Best Regards,
      Kyle M

  • Hi,

    Outgoing Mail server (SMTP) Port: 587

    Just changing  outgoing server from 25 to 587 worked perfect for me.

    Than you so much,





  • Until a week ago, my sending email on both my PC and laptop was working fine.  Now it won’t work, and I get the following message when trying to send on either device:

    503 Valid RCPT command must precede DATA

    I have checked the Outlook settings on both devices and they are identical to those you recommend – the outgoing server requires authentication and uses the same settings as my incoming server and I’m using port 465.  What to do, please?

    • Hello Norman,

      Sorry for the problems with your Outlook email client. The problem appears to be focused on that particular email client. Check out this response from Microsoft regarding that error. It may have the answer you need to resolve your error.

      If you have any further questions or comments, please let us know.

      Arnel C.

  • I have a small business and recently moving my host email through to outlook 2007, i added the account and had a message:  Send test e-mail message: Outlook cannot connect to your outgoing (SMTP) e-mail server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).

    Funny I can receive emails but cannot send – I changed the port from 25 to 2525 but there must be something incorrect.  


    Any help? 

  • Thank You So much Sir!!


    I was also facing problem of sending an email via outlook but by the help your arcticle i have found my sloution and this was very helpful to me.

  • With a change over at work of broadband, I successfully changed my SMPT settings and all is fine for sending and receiving emails from my work computer but now I can no longer send emails from my phone or home computer any advice would be most helpful

    • Hello David,

      The change of your work computer settings for email will have no effect on other devices unless they’re synched to use the same settings some how. You need to check the settings being used with your devices . They should be up-to-date and using the same settings as your work computer is using to connect to the mail server. If you are an InMotion Hosting customer, you can find your email settings here.

      If you have any further questions or comments, please let us know.

      Arnel C.

  • hi,i used to send 1000 emails in day with normal gmail account , past few months i cant send even 20 emails, if i send 500 emails it shows that your message has been blocked all the messages were blocked n returned back , why am i facing such problem, still my friend using gmail they are sending bulk emails,i have created new emaill address also but still am facing the same issues, your messages has been blocked. whether my isp blocked or smtp server blocked, i dont know, even i tried in my friend’s home still faced the same problem,what is the reason why i cant send any emails. when i checked with my olden email id,i used olden email id and sent  500 emails now but its delivered without any issues, when i created a new email id i cant send any bulk emails . please give me some solutions.

  • Hi,

    I am not able to setup Outlook for my Gmail. I want sent folder also, so I am using IMAP as it was working with POP, but not getting sent items.

    With IMAP, incoming message working successfully, but when sending I am getting an error message that says, “Send test e-mail message: Cannot find the e-mail server. Verify the server information in your account properties.”

    I have tried using SSL with port 465 and TSL with port 587.

    Please assist me.

  • gone through their trouble shooting steps a couple times.

    Could my router be blocking the connection or could it be a port?

    It’s a TWC/Spectrum account?

    Our IT pro is confused too…

    • It seems like your router could possibly be part of the problem, but really we are not authoritative regarding Microsoft’s products. I would recommend contacting Microsoft directly, and perhaps also your Internet Service Provider( ISP ).

  • For two days I have had a propblem with sending emails. From some recipient adresses I get “Mail delivery failed” messages as below:

    This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: host [] SMTP error from remote mail server after RCPT TO:<>: 550 5.7.0 Host is not allowed to send mail for ‘’ : Reason: mechanism


    Reporting-MTA: dns; Action: failed Final-Recipient: rfc822; Status: 5.0.0 Remote-MTA: dns; Diagnostic-Code: smtp; 550 5.7.0 Host is not allowed to send mail for ‘’ : Reason: mechanism

    Some recipients are ok; some are rejected. Doesn’t matter if I sent using SSL or non-SSL SMTP.

  • Hello Sir,

    My outlook 2007 I have download and all confirgatation has been done and it working all my gamil receiving email come but i dont know why not working sending email. 

    Please give me idea. 

  • wanted to thank the staff… reading through the troubleshooting, found port 25 blocked recently, changes to 587 and emails are going through agai..

    appreciate it very much.

  • Hello,

    I have an iPad Pro and an iPhone that pretty much run my business.  Every since the IOS 10 came out both of my devices will no longer accept the security certificate for the emails.  Now I can only receive emails, nothing seems to be accepted when I try and send an email.  Is there a solution for this ? IOS devices run my contracting business and must be able to work.



    • The steps here should allow devices to work normally. If they are still presenting issues, you may want to contact your Apple support to see if there is a specific setting on the devices that needs to be set.

  • Had the same problem, went to inmotion support (nothing helped that they offered) and finally found the answer with a bit of googling the name of my router and web service:

    Answer: Check your router! My home webservice (T-Online) has the router (that they give customers) set up so that the only SMTP traffice is through their SMTP….reason to limit/block spam mail….however one can go into the router admin section and change the setting (they allow it) and TA-DAH! the email goes through immediately!

    Check your router.

  • i have facing problem in seding email, i can send from webmail but cannot send from outlook 2013. it was working good till yesterday. my setting is pop3. outgoing server require autehntion(use same settings as my incoming mail) outgoing port 587(since day 1). i have checked switching between port 25 and 587 also switched switching sending email authenticaiton checked and unchecked with both ports(25 and 587) incoming is ok . sending from webmail is ok. please suggest solution.

    • If you have checked your ports and toggled the authentication, then you can rule those out most likely. I would try and re-enter all your settings to see if that helps.

  • It is effecting all IOS apps that do mail, both iOS native Mail app and any third party apps. Some cannont authenticate, others cannot send email which others can recieve. It seems like there is some issue with the latest update to iOS 10 (which is when the issues began) and authentication to your servers via iPhones. Wasn’t sure if others were having this issue. 


  • Hello,

    All of a sudden i cannot set up my email on any of my IOS apps. The ones it was previously set up on now won’t send the emails. I have checked my settings to make sure they are correct, and they are as instructed above. Username is full email address, pass is verified correct (can log into webmail) incoming is port 993 and server is Outgoing is 465 and is the same as above. Please advise as I am unable to send any emails at this time on my phone, which is not acceptable for my business and if not resolved may result in us having to get hosting elsewhere.

    • Daniel, I’m sorry to hear that you’re having this issue, but I’m happy to help! Are you also making sure that you have set SMTP Authentication to ‘required’? When did this issue begin? As this is a public forum and sensitive information should not be shared here, have you contacted our Live Support team for account specific assistance with this issue? When did this issue first begin? Have your devices updated recently? Are you using the IOS mail application, or a 3rd party one? What version is the mail application itself?

  • Sometimes we can send emails and sometimes we can’t. Can received them

    Port 25 is open on mac.’

    Our settings are absolutely correct as have done online chat with 2 tech support to confirm this.


    Online doctor says can’t connect to SMTP inmotion host server.


    How can we send emails?

    • We are happy to help you troubleshoot further but will need some additional information.

      Are you getting any errors, or bounced returned emails? Can you provide them?

      Are you able to send email from Webmail? Since this is just an email client (like mac mail, outlook, etc.) it will confirm if the server’s mail services are functional.

      When this happens are you on the same network/location, or are you connecting to via networks?

      Port 25 may be open on your mac, but it depends on your network. For example, many ISP’s block ports on their networks. Often public wifi, or even college/university networks block ports as well.

      I recommend reviewing your mail logs for additional clues since it provides specific evidence and record or your connection attempts.

      Thank you,

  • As of Sept 8 a.m i have been unable to send emails from my personal email account.

    The message reads that I reached my limit.

    I only send emails one at a time and send average of 20 per week – if that.

    This has never happened to me before.

    I did check at 1 a.m. on Sept 9 and it worked again for one test email. I then went to bed – but then at 9 a.m. I was blocked again.

    It also looks like my email is being used by ‘someone’ sending out BIRTHDAY and COUSIN DAY greetings. These messages hit my email as SPAM and undeliverable.

    I am using my gmail via explorer non-chrome and on ios iphone 5s.

    Thank you



  • Hi guys everytime i try send mail to my clients i get this need you help guys.


    This message was created automatically by mail delivery software.


    A message that you sent could not be delivered to one or more of its

    recipients. This is a permanent error. The following address(es) failed:


        host []

        SMTP error from remote mail server after RCPT TO:<>:

        550 5.7.1 Service unavailable, Client host [] blocked using Spamhaus. To request removal from this list see (AS16012611)

    Return-path: <>

    Received: from [] (port=33244 helo=[])

    by with esmtpsa (TLSv1:DES-CBC3-SHA:168)

    (Exim 4.87)

    (envelope-from <>)

    id 1bhvei-0005Eq-OK

    for; Thu, 08 Sep 2016 12:30:09 +0300

    User-Agent: Microsoft-MacOutlook/

    Date: Thu, 08 Sep 2016 12:29:55 +0300

    Subject: Scope Resources

    From: Kristian Johansen <>

    To: “Obel, Sarah” <>

    Message-ID: <>

    Thread-Topic: Scope Resources

    References: <>


    In-Reply-To: <>

    Mime-version: 1.0

    Content-type: multipart/mixed;


    X-Exim-DSN-Information: Due to administrative limits only headers are returned



    • In your email headers indicate your email is being delivered to the recipient server, but is being refused delivery because the IP is blacklisted with SpamHaus.

      I recommend contacting your email host so they can request delisting from SpamHaus.

      Thank you,

  • We are getting outgoing email flagged as Spam. We had this before and requiring SMTP authentication took care of the problem at the time. Now it seems to happen only on a second or third generation reply. New emails go through fine. Any thoughts on how to remedy this? Thanks!

  • Hello dears ,

    I am an employee in a company,we have MS Exchange server 2010,

    but now i have a problem with my outlook mail,i have aproblem during ligin process.

    when i try to login i get an error message:

    Your mailbox appears to be unavailable. Try to access it again in 10 seconds. If you see this error again, contact your helpdesk.


    Anyone can help me please..

    • Hello Dyari,

      Sorry for the problem with your email. MS Exchange server is a mail server that is supported by your network. We do not provide support for that type of mail server or service. Your best avenue of support is to contact your local IT network people to see why your mail account is not accessible.

      If you have any further questions or comments, please let us know.

      Arnel C.

  • For a month I had the same problem.  I don’t know if this will work but my sent box was so full it wouldn’t let me send anything out.  I removed all the sent mail in the folder and it worked after that and I haven’t had any problems since.

  • Hi Dears,

    I am also facing this same sending email issue, here there are three network connection, two has been working fine then other one can receive but can’t able to send. i tried 110 & 25, and 995 & 465. but nothing use .Suddenly happened this issues, i check with ISP person whether anything blocked or not , They told everythingin active nothing block. who can resolve this issues i really appreciate.




    • If you have already tried troubleshooting with different email settings and different email client configuration and checked with your ISP then you can also check your mail logs to see if you have get more specific information about the errors are coming from.

  • Date: 5/15/2016

    Issue: Suddenly Unable to Send e-mail (or send a test e-mail) using MS Outlook 2013 through my ISP ( and utilizing my personally-owned URL e-mail server.

    Background:  For 2 years, I had no issues using MS Outlook 2013 to send/receive e-mail using my URL e-mail server.  Upon returning home from vacation on 7 May 16, I was able to receive e-mail using MS Outlook 2013, but was unable to send e-mail.  Upon checking the Outlook Account Settings, I found out that I was also unable to send a Test e-mail using the settings that I had been using successfully for the last two years.  These settings were:  Account Type:POP3; Incoming Mail Server –; Outgoing Mail Server:; Logon Information: My Login and Password from my account; Under More Settings: My Incoming POP3 Server = 110, Outgoing Server = 587.  NO encryption boxes checked whatsoever on ANY of the Tabs.

    After fault isolating the problem with, they duplicated my Outlook parameters on their MS Outlook 2013 machine (using my Login/Password information that I provided them).  They were able to send/receive e-mail without issue.  This action prompted me to think that something had changed with (Cox made a change effective 1 May 2016).

    Solution: I made the following changes to my MS Outlook Account Settings and now everything works fine again.  Changed Outgoing Mail Server (SMTP) to: (I chose this SMTP address since I subscribe to Cox out of Alexandria, VA…your choice may be different!); Under More Settings, click the 2nd TAB (Outgoing Server), click the box near the top “My Outgoing Server Requires SMTP Authentication”; Click the Radio Button that says, “Log On Using” and type in your UserName and Password to your account.  Be sure to check the box “Remember Password”.  Attempt to test the account settings and you should get two Green check marks.  Finish the process to Save Your Changes and then attempt to send an e-mail from MS Outlook 2013 to ensure everything works.

    I hope this info helps,


  • I can receive email on my mac but its just stoppped sending.  i phone still working fine.  I connected to wifi at Melbourne airport recently thats the only thing thats changed.  If I chnge my password with hotmail would it muck up my phone too or is the problem with microsoft for blocking something because recent activity has changed


    • Hello Sandy,

      Thank you for contacting us. Often, public networks (such as airport wifi) block ports. I recommend trying the two solutions above, instead of changing your password.

      Thank you,

  • My Office and I thank you all so much. This week would have been three weeks that we’ve not been able to send an email using Outlook. I can’t remember how I got here but this worked like a charm. All fixed now and we also now see why we had the problem to begin with (port 25).

    • Hello,

      What type of phone are you trying to access your mail on? Are you wanting to use IMAP or POP3?

      Best Regards,
      TJ Edens

  • I have recently experienced this error when trying to reply or send email:

    “Login to server failed.  We have been on your server for approximately two months and have no issues whatsoever in sending or replying to email, until yesterday.  There’s no reason why settings that worked in Mozilla Thunderbird have now simply stopped working.  I perused your suggestions and double checked incoming/outgoing server settings, (which have worked with no problem previously)




    • Hello Sandeep,

      Sorry for the problem with your email. As per the error, the authentication of the user is being questioned at the client. You would need to check that users’s credentials at the client or server in order to correct it. The error indicates that the user is coming from a Yahoo account. If we are to investigate it further, you would need to provide account information as well as the settings you’re using for your mail client.

      If you have any further questions or comments, please let us know.

      Arnel C.

    • Hello Ron,

      If you are on a Reseller server, those settings are not correct. They should be set to for the reseller account. The reseller name servers are not the same as the InMotion Hosting servers.

      I hope this helps to answer your question, please let us know if you require any further assistance.

      Arnel C.

    • 1. Go to Account Settings (Tools > Accounts)
      2. Click on the “Mail” tab
      3. Highlight your GreenNet email account, and then click on “Properties”
      4. On the “Servers” tab, check that you are using GreenNet’s SMTP server. Outgoing mail (SMTP) should read “”
      5. Make sure there is a tick in “My server requires authentication” (the “Settings” should be “same settings as incoming”).
      6. Next, click on the Advanced tab, under ‘Server Port Numbers’ change the Outgoing mail server port from 25 to 2525 (or vice versa, depending on which one you have there already. You could also try 465 with encryption).
      7. Save your changes and try sending email again.

      hadoop training in chennai

  • Hello 

    I got the error in configuring outlook

    if enter correct server data then got the error

    how to setup outlook 2010 Log onto incoming mail server (POP3): Your e-mail server rejected your login. Verify your user name and password for this account in Account Settings.  The server responded: -ERR [AUTH] (#MBR1240) Please verify your account by going to

    how should i correct this

    thanks  & regards


    • Hello Brian,

      How are you sending the emails? Is it via an email client or webmail? Are you authenticating with the outgoing mail server if you are using a desktop client or web script?

      Best Regards,
      TJ Edens

  • I haven’t receive any mail since yesterday and I can’t send mails too… can you help me???

    I think my account is been hacked.

  • Hi TJ,

    Have tried this and it doesn’t work. I have two accounts on the Mac, with two different ISPs, and I can’t send the message from either email address.

    The error message is Error: 5.7.6 Message rejected as spam (CM).

    Mail could not be sent (from email address stated)


    Error: – 17099

    Any thoughts?




    • Hello Rayna,

      Sorry for the problems with the email/email address. Have you tried clearing the outbound emails that are stuck with this address and just sending a test message? It’s possible that if one message is queued in the outbound and being repeatedly blocked. The message could possibly be flagged for spam and then not allowed for outbound traffic. We can not verify this for you unless you’re an InMotion customer and you provide us the email address in question. Blocking emails by address is not something that is typically done on our servers. If you want to handle the issue privately, please submit a verified support ticket along with the necessary account and email information so that they can look into it for you.

      If you have any further questions or comments, please let us know.

      Arnel C.

  • Hi There, I was hoping this site would fix my problem, but my problem is slightly differrent. I’m on Miscrosoft Entourage for Mac, and all of a sudden there is one contact in my address book where I can no longer send or receive emails. I can sned and receive on my IPad, so I assume there is some sort of filter that has been allocated to the email address. I have tried tp shceck the Properties assigned to the contact, but I can’t fix the problem. Can anyone help please?

    • Hello Rayna,

      Are you by chance getting any bounce back errors? Have you tried removing the contact from your address book and re-adding it? You may need to do the same with your mac mail account itself.

      Best Regards,
      TJ Edens

  • I’ve been driving myself crazy trying to figure out why my new outlook account will receive emails but won’t send any, and your site is the only one that made it clear and easy and solved the problems in a sec.

    thank youuuuuuuuu soooooo much.

  •  send test e-mail message:Cannot find the e-mail server. Verify the server information in your account properties

    i getting above message when i m doing  Test Account Setting in outlook. 


    • Hello Zakir,

      That message says to doublecheck your server setting information as it cannot find the server with the information given.

      Kindest Regards,
      Scott M

  • “Why can’t I send email ? I keep getting an error about being blocked and on a blacklist for spam. I have not sent any spam though! Why am I blocked?


    Could you please help me? 

    • Hello Leben,

      Can you please post the headers from the bounce back email you are getting so we may troubleshoot the issue? Also you may contact our support team in regards to the bounce back as they may assist as well.

      Best Regards,
      TJ Edens

  • Hi,

    I can receive E-mails but I’m unable to send out any emails..

    It says that the .pst file has errors… we still couldn’t find ways to fix it.

    • Hello Audrey,

      Thank you for contacting us. I first recommend double-checking your SMTP settings for misspellings, you can view your specific email settings in cPanel at anny time.

      Also, as a test try rotating your settings. For example, if you are using the non-SSL setttings for SMTP, try the SSL settings instead (and vice versa).

      Thank you,

    • I would suggest checking your anti-virus and firewall settings. Turn off any anti-virus software and attempt to send. If that doesn’t work disable your firewall and see if you can send then.

  • hello Everyone,

    i am facing issue while receiving the emails through outlook. Receiver receives 02 emails while only 01 email is being sent.

  • Hello,
    I hope you doing well!!
    Can you please tell me everyone my any gmail id not configure in outlook 2007
    Problem: –
    1- Log onto incoming mail server (POP3): Your e-mail server rejected your login. Verify your user name and password in your account properties. Under Tools, click E-mail accounts. The server responded: -ERR [AUTH] Web login required:
    2- Send test e-mail message: Your e-mail server rejected your login. Verify your user name and password in your account properties. Under Tools, click E-mail accounts.

    Note: – User id & password coplete verify after that given above problem.

    Plz how to configure gmail id in outlook 2007/2010.

    Best Regards,

    Salauddin Ansari

    • It would appear by the email error message you are not using the correct login details. Check to make sure you are using the correct username (email address) and password.

  • hi,

    i’m unable to send any mails as they have blocked my web server and the reason behind it is i have sent bulk mails and i had no idea that many id’s have spammed me. can you help me out in resolving thi issue as soon as possible. looking forward fo ryour help.


    Thank you

    • Hello rajesh,

      You will want to contact the owner of the list you are on. Sometimes it is a blacklist service, other times it is simply the owner of the receiving server itself. Contact them and ask how to get your email IP removed from the list so you can once again send emails.

      Kindest Regards,
      Scott M

  • Hi there:)

    My client is getting a bounce back from only one company that she is sending an email to.

    They have checked that it’s not getting caught in spam etc, but it’s only this one client that they are unable to send to.

    I have tested it and I sent an email to the email address and it goes through. is the email address that sends an error message back to


    Please take a look.

    Thank you!

    Harlow Pest Control

    • Hello Cara,

      Can you please provide the headers of the bounce back message so we may try to troubleshoot the problem?

      Best Regards,
      TJ Edens

  • I email our members.  I created a email account.  I send the email to that email address and BCC to the member’s personal email addresses.  Recently, I get a pop-up error window stating that it cannot be sent.  It only allows about 50 emails to be sent at one time.  So, since we have over 150 members I have to send the same email 6 or 7 times to get through the list of email addresses.

    Also, when I send an email to the I get this message returned.  However, the email does deliver the email addresses.

    This message was created automatically by mail delivery software.

    A message that you sent could not be delivered to one or more of its
    recipients. This is a permanent error. The following address(es) failed:

      pipe to |/usr/local/cpanel/3rdparty/mailman/mail/mailman post
        generated by
        local delivery failed

    The following text was generated during the delivery attempt:

    —— pipe to |/usr/local/cpanel/3rdparty/mailman/mail/mailman post
           generated by ——

    cagefs_enter: /usr/local/cpanel/3rdparty/mailman/mail/mailman: Permission denied

    —— This is a copy of the message, including all the headers. ——
    —— The body of the message is 2729660 characters long; only the first
    —— 106496 or so are included here.

    Return-path: <>
    Received: from localhost ([::1]:27603
    by with esmtpa (Exim 4.85)
    (envelope-from <>)
    id 1ZmwFL-002L7l-Mw; Thu, 15 Oct 2015 21:04:00 -0700
    MIME-Version: 1.0
    Content-Type: multipart/mixed;
    Date: Thu, 15 Oct 2015 21:03:59 -0700
    From: AAI Member List <>
    To: Members List <>
    Subject: October Northern Lights issue
    Organization: Anchorage Alaska Intergroup
    Message-ID: <>
    User-Agent: Roundcube Webmail/1.0.6

    Content-Transfer-Encoding: 7bit
    Content-Type: text/plain; charset=US-ASCII;



    So, why is this happening?


    • Hello Randy,

      Sorry for the problem with sending emails. The problem has to do with a an established limit for sending emails (50). There is also a 250 mail per hour limit on all account. If you are continually sending a newsletter or message to multiple people that number in the hundreds, then I highly recommend using a service called MailChimp. This will not only allow you to send to your member list in one shot, it also is highly customizable and does not affect your hosting account.

      I hope this helps to answer your question, please let us know if you require any further assistance.

      Arnel C.

  • I am using Outlook for MAC and just updated to 15.4.2 a few days ago and since then, I cannot send emails from Outlook. I am receiving them fine and can get emails on my exchnage server through the server company (Metisentry) and they do not believe the issue is on their end. The outgoing port was 25 – I hvae also tried 587 and 465, both with and without SSL. None of these options allows me to send email. 


  • Hi! Thank you for this article!

    My issue was this:

    I’ve been using Microsoft Outlook 2010 at work with 4x E-mail Accounts with no hassles for several years. All of a sudden, an error message popped up saying Outlook could not connect to my incoming POP server, and to check with my ISP or administrator? What the hell!?

    I double-checked the passwords, they were correct. Logged in via webmail – All good. I couldn’t work out why Outlook suddenly decided not to work? I could send e-mails, but not receive anything.

    Anyway, my solution was as simple as changing the port from 25 to 587.

    I don’t know whether it was blocked by my ISP, or my web host, or my computer! But either way, it worked.

    • Hello Nick,

      Thanks for the comment. Yes, port 25 is often heavily used by spammers, so many ISP’s have started to block it. If you have any further questions or comments, please let us know.

      Arnel C.

  • I had recently faced the same problem since last 2 days outgoing mail was not going and was asking for password,indeed got irritate as password was correct when I checked with webmail login.Finally what i did a simple solution which was successful.I changed in Outlook mail setup user id for instance xyz@…….. to only xyz and deleted @…… ,it work with same pop3 110 & 25 port successfully.Try out 

  • I have purchased office 365 about four months before, from that time onwards i facing problem,  ie. I am using outlook expresss for viewing our company mail,  which has separate server,  every 10 days once, i get call from others, saying mail sent to you are bouncing,  I was told to clear all the mails which is stored in mail server,  later on when I checked, a copy is getting stored in mail server, which needs to removed,  how I do it,  please help



    Prasanna Kumar.

    • Hello Prasanna,

      Which server are you trying to remove mail from? The office 365 or outlook express? Can you provide the error from the bounce back?

      Best Regards,
      TJ Edens

  • A couple my customers have aol email accounts and say they do not receive my emails. Are there some settings I have wrong? I have arguments with my boss who says it has to be me not the aol accounts. 

    • Hello Betty,

      If your emails are not being delivered, they usually get bounced back along with some details. The details contain a reason it was returned. If you have one of those we are happy to look. If you are a customer you may want to forward that to our Live Support team so they can assist you since you do not want to post it here in public.

      Kindest Regards,
      Scott M

  • I have Outlook 365 set to use my gmail account with IMAP.  It sends and receives emails.  However the “sent” folder in outlook does not sync or update.  When I first installed it recently it downloaded “sent” items from over a year ago.  It never downloaded anything more recent and it continues to not download any sent items.  If I open my “Sent Messages” folder it appears that I have not sent a message for over a year.  However, if I log onto gmail through my browser the sent items are there in the proper place.  Any ideas?

    • Hello Roxanne,

      Thank you for contacting us today. We are happy to help, but will need some additional information. Have you subscribed to your INBOX in Outlook?

      This allows you to view the folders stored on our servers. Although, Gmail’s settings may differ.

      If you have any further questions, feel free to post them below.

      Thank you,

    • Hello ikramudin,

      Thank you for contacting us. We are great! Is there anything we can assist you with? Was the above guide able to get your email working?

      Thank you,

    • Hello pbear12,

      Thank you for the information. Also, we can Auto Archive email for you.

      This can really help IMAP users, since every time you connect it has to sync & list every single email.

      Thank you,

  • After not being able to send out mail for over a month I did a lot of research and found a solution that worked for me.  Move all of your sent mail to another folder or delete the messages.   Make sure your outgoing mail is set to the default settings.  Your sent mail will only hold a limited amount of GB.

  • hi can you help?


    my outgoing ( SMTP server is not working. All outgoing servers are off line. I am on a Mac book,pro in the accounts section.


    can you advise please.






    • Hello Donna,

      Have you checked out our article on macmail setup? Also, can you connect via webmail (as a test) with your current SMTP username and password? Are you getting any specific error? If so, please provide the full error text.

      Kindest Regards,
      Scott M

  • I can’t send emails via Outlook on my Mac – it keeps saying error code 150.

    My outgoing mail ports are fine – i can send via webmail but not via my iPhone or Outlook. Any ideas??

    • Hello Jared,

      Per Microsoft’s forum, the error 150 that you’re seeing is an “unknown error”. This doesn’t help much, but the discussion on the forum was that people were able to switch the outgoing port and it would work. I don’t know if you are an InMotion customer or not, but the information on this article is used to identify the email settings. Since your problem is with Outgoing mail, the settings are a likely culprit. If you’re not using SSL settings, then switch to them. If you are using SSL, then turn SSL off and make sure that your outgoing port is set to 587.

      If you continue to have the problem, please provide us the email settings that you’re using, the version of Outlook and Mac iOS that you’re using. We can then investigate the issue in more depth.

      Arnel C.

  • Dear John-Paul,

    e-mail is hosted by I have company so it goes thru my site. Yes I use mozilla thunderbird. like when I send an e-mail to any mail hotmail,gmail only half of my text is shown. I don’t use mozilla firefox.


    Thanks in advance,



  • Hello, My problem is that when I send an email, the receiver only gets to see half of the text. so my email is 200 words long, once the mail is send from mozilla, only 100 words show up. do you people know what the problem is?

    • Hello safeer,

      Thank you for contacting us. We are happy to help, but will need some additional information. Who is hosting your email? For example, is it hosted on our servers, gmail, hotmail, etc.

      Are you using Mozilla Firefox to access email on webmail?

      Are you using Mozilla Thunderbird to send emails?

      Thank you,

  • Hi Jean-Paul,

    Comcast pointed me to the right direction , that was something with Out data files (.pst), I did removed all accounts & data files, pointed to old “.pst”, recreated accounts and magically it start working. Thank You all for the help, 

    Cheesr kes

  • Hi Scott,

    Yes, I did try same settings as Outlook2003, as well as Comcast preferred setting for Outlook-07/10/13, same results. Maybe Comcast doesn’t support Out365 at all ?!

    Thak You for Your help,


    • Hello Kestas,

      Thank you for your question. I recommend contacting Comcast, so they can troubleshoot the problem in real-time.

      For example, our Live Support team can monitor the server logs and see if you are connecting to the server or not.

      Thank you,

  • Hi All,

    My problem: Outlook-365 can’t send email using server.

    Test messages – OK. Receive – OK.

    When trying to send – error 0x8004010F An object can’t be found.

    I tried No security, SSL:465, TLS:587. Same result.

    Outlook-2003 works just fine.

    Any ideas, Cheer kes

    • Hello Kes,

      If your Outlook 2003 is working, then you want to make sure the Outlook 365 has absolutely the same settings. If they do, you will want to check with Outlook 365 support for help because the only thing you should need are the proper settings for it to work properly.

      Kindest Regards,
      Scott M

  • Thanks Jeff. Helped me a lot. Before I can receive but can’t send emails. Now, I can send emails from my mac. Thanks guys!


  • Thanks Arn, yes I have all those settings.  (Use SSL of course.)  It may be my unfamilairity with T-bird:  I’ve got the micro-metrics ones working fine now — but the snowtao ones are still choking.

    Okay, I deleted one of the two addresses that appear in the left-hand pane in T-bird and recreated it, using manual config.

    Incoming: POP3 port 995, SSL

    Outgoing:  SMTP port 465 SSL

    Tested and retested, and it keeps saying the “config couldn’t be verified and asking if the username or password is wrong.”  The ID and pword work in webmail.

    But:  “Sending of password for user did not succeed. Mail server responded: Login failed.”

    (In Account Settings:  I’m now up to ELEVEN (!) options in the dropdown for “Outgoing Server (SMTP)”  — HOW do I delete any of those?)

  • Hey Scott, this is the error message: 

    Sending of password for user ****** did not succeed. Mail server responded: Login failed.


    Sending of password for user ***** did not succeed. Mail server responded: Login failed.

    I know the user IDs and passwords are correct because I can take them directly into webmail at IMH and they work.  (And I’ve tried the Comcast password, and the snowtao passords and the IMH password…)

    In Account Settings — for the Outgoing Server / stmp, I now have TEN of them — one for each email address, plus one I’ve called Comcast Relay (which is merely a repeat of the Comcast email address that I only use for the Relay).  The “Default” server (in “Use Default Server” is set-up as the “Relay Comcast – (Default)” one.

    Ideally, there would be two? Three?  The personal domain ( and the biz one (  And maybe or maybe not? The Comcast Relay one?  I’m guessing they all were created (cause I don’t remember doing so) when T-bird pulled my emails addresses and folders over from Eudora?)

    Weirdly, the biz address pulls incoming emails (and seemingly answers them as well). It shows the server name as “” — and its outgoing server (with correct secure number) is: –

    However, the various addresses show the server name(s) as “” — but its outgoing server is (each) “ —”.  And I cannot find anywhere to edit those?

    Thanks!  (Sorry it’s so long — want to make sure I’m providing enough info!)


    p.s., and just to complicate matters — I have three accounts showing in the left-hand pane in T-bird:  two personal addresses and the biz (well, one of two) address(es) showing. The others?  Appear IN Account Settings — but I cannot find anywhere (and I have searched the web!!) that tells me how to get the others to show in the left-hand pan eo fht emaion T-bird view… So I cannot get them to check for mail — but if I try to create a new Account (?) in the left-hand pane, it tells me there is already an account named that… (“Well, yes, but I want to SEE that account, you know?”)

    • Elenor,

      Sorry for the continued problems with Thunderbird. If you are using our servers for outgoing messages, then the settings should be based on the our outgoing settings. It’s not immediately apparent what you are using for your email settings, but they should look like this:

      NON-SSL Settings:
      user name=
      email address password
      Outgoing email server port = 587
      Security = NONE

      SSL settings (can also be: example:
      user name=
      email address password
      Outgoing email server port = 465
      Security =SSL

      You can also go here to find your email settings if you’re not sure: How to find your Email Settings.

      Hopefully, this clears up the issue. If you’re still having problems after making sure your settings match up, then please let us know.

      Arnel C.

  • <>Anyone having problems setting up outlokk try the method below:

    1. Goto to this links

    with your google account sign in and you will find devices and activity, under it click “it was me” or something like that I forgot.

    2. Again goto to this links

    enable less secure app and save.

    3. And finally renable pop and amap once again and logout.

    4. Disable antivirus ‘to be on safer side’.

    5. Try again in outlook.

    • Hello zizi,

      Thank you for your suggestion. For other people who may find this post, Google warns doing this “… increases your chances of unauthorized account access but allows you to continue using these less secure devices and apps.

      Thank you,

    • I cannot find how to use (my newly set-up) T-bird to SEND msgs through Comcast (my ISP), from either of my two InMotion domains ( and In Eudora, I have the Comcast email set-up as a relay account, and both domains are able to send and receive emails. T-bird imported all my Eudora mailboxes and personalities, and I have gone through each getting them correct — but can’t send or receive?

      With some many people now having many many addresses, including several of their own domains — a set of directions for how to set up relays to work with OMH would be great!

    • Hello Elenor,

      Thank you. We have corrected the broken link since Comcast decided to move that information.

      Kindest Regards,
      Scott M

    • Hello Elenor,

      If Eudora is working with our accounts via ComCast, then the same settings would be used for Thunderbird. All email clients would use the same information as it is simply connection information it is looking for. Is there a specific message you are getting when it fails?

      Kindest Regards,
      Scott M

  • All at once, my email box, where I would write my message, appears to be “dimmed” and it will not let me type anything into it.  This also happened on my laptop.  I am totally confused, we had a power outage last night, but my computer was not up and running when it happened, it took nearly an hour for it to restart.  I am with Centurylink and Windows 8 on my PC, the laptop is a Dell, windows 7.  I am not a computer genius by any means.  Help…what good is a computer if you can’t send a message?

    • Hello Maurine,

      What email client are you using? Are you able to log into your webmail at all? Is this specific to a single email account? Does it work from other networks such as a phone carrier? We can help with anything server side, but just need to know more information to understand if this is server side or on your side.

      Kindest Regards,
      Scott M

  • No em not using any other account it was going best so I was not in the need of using any other bt trying sending mail from 3 days bt it is saved in outbox and nit sending then for confirmation tried by send mail to myself and it is showing that key ID: 0x3824A343

    This issue is going on wuth all mailing addresses coz I have tried on my own as well.and I have experienced this issue for the 1st time.i am using only outlook.i am not ur customer

    • Hello sivamalepati,

      Have you tried any of the above solutions? If so, which ones? If you are a current customer, you may want to contact our Live Support team as they can step through your settings with you to ensure they are correct.

      Kindest Regards,
      Scott M

    • Hello sivamalepati,

      Thank you for contacting us about Window Live Mail. We are happy to help, but will need some additional information.

      What problems are you having?

      Are you getting any errors? What are they?

      Thank you,

    • Hello faryal,

      We are happy to assist you, but will need some more information. What is the domain that is having problems?

      Since you are not hosted with us, have you confirmed that your host is not experiencing issues?

      Thank you,

    • hi, iam using windows live mail, the mail are going and are even visible in sent folder, however the mails are not being received by the recipients, iam having problem since a week. no error message is being displayed. what could be the cause, can you please help us. iam from india.

    • Hello Marry,

      This seems to be a common problem with Mac mail users. In the official Microsoft forums, they advised to make sure nothing is stuck in the Out box.

      If you have any further questions, feel free to post them below.
      Thank you,

    • Hello sivamalepati,

      Thank you for the follow up information. I recommend reviewing the email logs to see where the emails are being stopped. If you are hosted with us, Live Support can help you review the email logs.

      For example, you can see in the logs if they are being delivered to the recipient server, or being rejected before that.

      Thank you,

    • we are not hosted with you, still you can help us? i checked with our mail server people, they say windows live mail has problems, but i don’t find any issues, am able to receive mails and able to send, unfortunately we are not able to trace out where the mails are missing. can you please advise any modifications/help for me work accordingly. regards-sivaprasad

    • Hello,

      We are happy to help, but will need some additional information. Have you tried any of the steps described above? Have you checked that your email settings are correct and without typos?

      Have you tried restarting Windows Live Mail?

      Did you recreate your email account in Live Mail?

      Can you confirm there is nothing stuck in the outgoing box?

      Thank you,

    • hi,
      there is nothing struck in outbox, idid not recreate mail account, i did restart windows live mail several time since few days, nothing is happening. e- mail settings are correct, iam able to receive and send, the out going mails are not reaching the end user.

    • Hello sivamalepati,

      If you are not seeing anything still in the outbox, then you may want to contact the owner of the mailserver to have them take a look and see if the email left the server and got a response from the recipient’s server. If there is an issue, then it may have an error in the server log that they can adjust.

      Kindest Regards,
      Scott M

  • Hi,

    I’m facing a techinical issue in outlook 2010, while i send the mails from my ID but where the receiver end it is appearing with different name.

    Is there a solution to sort the issue.

    • Hello,

      Please explain in a little more detail what is happening. Does this happen to only one email address or multiple? Did the behavior occur recently or has it always done so? Does this only occur when sending via Outlook as opposed to webmail? Are you one of our customers so we may be able to take a look in the server to see what is going on?

      Kindest Regards,
      Scott M

    • I live in Hong Kong and since I updated to 10.9.4 on my Mac I have not been able to send mail. Port 25 is not blocked. I have tried using a VPN as well to ensure it is not my ISP. Mail can send from Webmail, but from Apple Mail with SSL or no SSL, designating specific ports or selecting Default Ports I can not connect to the SMTP server.

    • Hello,

      The mac and iphone should use the same settings. Also, test to ensure the iphone is sending from the same network. Barring any network issues, the settings are the only thing needed to connect.

      Kindest Regards,
      Scott M

    • Hello Michael,

      You will want to check all the settings to ensure they are correct. If you are connecting via the webmail and not the mac, then it is something on the mac side. Just check to ensure the update did not make any changes to your settings so that they are all as they were prior to the update.

      Kindest Regards,
      Scott M

    • The article states up near the top that the servers for SSL are, I get an error if I use that. cPanel (within the hosting) guidance states it is which does work. Your examples show incoming IMAP/POP settings, but the port shown is 993 which is just for IMAP, so these are misleading. I have also seen elsewhere in your help pages another setting for the server which was different again. In my case, I have recently moved to InMotionhosting, along with 40 websites and have been trying to use secure settings for email. I am based in the UK, with British Telecom as my ISP. I have spent around 4 hours trying to set a secure POP3 email account up and running using the information from your cPanel and from the various help items on your website and over 30 minutes chatting with technical support who could not help either. However I have come across a solution. I get a timeout if I try to use port 465 for SMTP on a Pop3 account. This port is not blocked from within my system, but I suppose it might be blocked by BT (ISP). It still times out if I am not using any security. However I have found that Port 587 and selecting TLS as the security type does work with the (My POP3 incoming server is set up on SSL and using port 995.)
      I hope that helps. The thread here is particularly long, so a lot of people are finding difficulty here.

  • My Outlook 2010 quit connecting to the server yesterday at 11am.  I’ve restarted outlook several times.  restarted my computer. but it won’t connect to my server.  I’ve called my email provider & they are not having any issues.

    I have my incoming IMAP at 993

    Outgoing SMTP 465 both with SSL encrypted.

    Everyone keeps telling me it’s not an issue on their end but still I don’t have emails.  i can go into web mail & see that I have 100s of them waiting for me.


    • Hello SANDY,

      Thank you for your question. There are several things you can check.

      Since ports are often blocked, have you tried the alternate email settings using the following ports?
      IMAP: 143 (instead of 993)
      SMTP: 587 (instead of 465)

      You can view all your email settings in cPanel at any time.

      You an also test if your email ports are open using Telnet.

      If your email is hosted on our servers, it may be easier to contact Live Tech Support so they can review the email logs in real-time (while you are attempting to connect).

      If you have any further questions, feel free to post them below.
      Thank you,


    • I managed to follow the instructions, but it did not resolve my problem which is : not being able to send e-mails from my mac account. I have no problems from my i-phone.

  • Hi,

    How to configure the windows exchange server that the admin needs the copy of all the emails send and receive by the users in the network, Also please mention if any other third party tools available in the market.


  • Hello Dear,
    I have using IMPA E-mail account suddenly Today facing issue after sent e-mail
    as like Return Message come our OUTLOOK inside using MS2007outlook
    check it 
    This message was created automatically by mail delivery software.
    A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
     SMTP error from remote mail server after MAIL FROM:
     host []: 550 SC-001 (COL004-MC3F34) Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to
    ------ This is a copy of the message, including all the headers. ------
    Received: from [] (port=3530 helo=L30B)
     by with esmtpa (Exim 4.82)
     id 1XFipt-0005ni-Eq
     for; Fri, 08 Aug 2014 17:29:55 +0530
    From: "Leben System Administrator" <>
    To: <>
    Subject: test
    Date: Fri, 8 Aug 2014 17:29:36 +0530
    Message-ID: <000001cfb300$3b42f710$b1c8e530$@com>
    Kindly reply me
    Thanking you in anticipation.
    System Administrator
    M: +91 9326076994
    P: +91 7242259502
    Leben Laboratories Pvt Ltd.
    L-4 Phase III M.I..D.C Akola -444104
    (Maharashtra) India
    Content-Type: text/html;
    • Hello swapnil,

      Thank you for your question. The important part of this returned message is as follows:

      Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to

      This means your mail IP is most likely blacklisted
      on the email host for swapnil_p****

      I recommend contacting the mail host for and advising them of this blacklisting.

      Also, you may have to email this person (swapnil_p**** from a separate email address, and requesting that they whitelist you.

      In the future, we have a Bounceback email tool that can help determine the cause behind returned emails.

      If you have any further questions, feel free to post them below.
      Thank you,


  • I have cox for my email and noticing that some emails that people send me on cox I can get on my cell or on gmail (I have them going there currently since I am having this problem) but they are not coming in on my entourage. Like I stated only some emails this is happening with.  What do I do to fix this?

    • Hello Lisa,

      The first thing to check is make sure that you don’t have multiple devices setup to check your Cox email account that are setup as POP, as the default behavior is to remove new messages from the server and download it locally to the mail client. So if you phone downloaded a new message, and then you check on your desktop in Entourage, that email would only be on your phone and no longer on the server for Entourage to view.

      If certain people are unable to send email to your Cox account, more than likely they are sending from an email server that Cox has blacklisted. We have a guide on why mail servers get blacklisted that reviews why this can happen.

      Unfortunately to get around these types of issues, typically the person sending you an email to your Cox account should receive an email bounce back stating the exact reason why their message wasn’t delivered. If it was because the server they were sending from is on a blacklist, they would want to request a delisting from a blacklist.

      If it’s not due to the sender trying to send their email from a blacklisted server, they should still get an email bounce back, and here are the Cox email error codes they might receive if their message is being blocked for another reason.

      You might need to contact Cox directly for more help, as looking at the Cox Postmaster guidelines, they have published these sending guidelines that some people trying to send to you might not be following.

      What are Cox’s sending limits?
      Cox currently allows up to 5 simultaneous connections per sending IP address, and up to 100 messages per connection. However, regardless of these limits, Cox may throttle your sending ability based on your sender reputation. Cox’s sending limits and policies are subject to change at any time. Cox will update this website when changes are made.

      Please let us know if you had any further questions at all.

      – Jacob

  • Thanks a million! Until I found your post, I went for hours searching without finding a fix for mail stuck in Outbox problem in Outlook 2010+Windows 8. You’re the best!!

  • Hi John Paul  yes mine was a bit of a mess  I can read what comes from  but they can’t read what I send they either get jumbled words or blank pages  susie managed to realise it was my email  the one I am using now is what I use most is my mobile

    • Hello Royston,

      Thank you for the additional information. Can you provide an example of the jumbled text?

      Do you have access to webmail so you can try and send an email from there as a test?

      If you have any further questions, feel free to post them below.
      Thank you,


  • Excuse me hi . 

    But i’ve been wondering . if what you asked me to test & send to you 

    has’nt been forgotten & that you’ve made time to fugure out why emails are coming out encoded or crippled or garbled . cause i need answers & solutions now . so i can be at ease instead impatient a lot . 

    • Hello Daniel,

      As we get thousands of emails a day we need to be able to locate your specific email. That is why we asked for you to comment here and advise us of the subject of the email so we can find it. Please reply and I will see if we still have it.

      Kindest Regards,
      Scott M

  • Hello John Paul  thank you for your reply this is confusing I have an email and a Gmail not sure if I can help you I can receive from but mine are a jumbled or blank pages I am not to good  I don’t know my server this is my mobile with Vodafone have also got another same proplems.  she is a friend Yes they have checked spam it is this Gmail I use most  Susie has just moved  also changed her phone number  sorry I am not much help but thank you

    • Hello Royston,

      Sorry for the continuing problems. Unfortunately, we need a little more to go on than what you’ve said so far. I think you’re saying that when you send emails to your sister she is not able to read them. Are you able to receive her emails in Gmail okay? Can you try forwarding emails from your sister into Gmail and do they work okay? Try that with the CC option in the email. It doesn’t appear you’re our customer, so you may need to contact your email administrator with your current host if the problem continues.

      Arnel C.

  • I am trying to email my sister her email is I can read hers but she can’t read mine have also got a cousin with same email and the same thing happens

    • Hello Royston,

      Thank you for your question. We are happy to help, but need some additional information to help troubleshoot the problem.

      What is happening to the emails when they send?

      Are they failing or being returned? Can you provide the returned message?

      Are your cousins checking their Spam box to make sure it is not being flagged by a filter or rule?

      Have you contacted your email host at the time you are sending? This would allow them to review the email logs to see if they are being delivered.

      If you have any further questions, feel free to post them below.
      Thank you,


  • Thanks John for your immediate responce and below are my answers:

    The host company did not rotate passwords or stop our account for any financial or late bill. Also the domain does not expire before November.

    Please bear in mind that if we use another ISP everything is working normal. I just want to identify what would be the issue since the ISP did not block anything.




    • Hello Mike,

      I am happy to help, but I really need additional information to help troubleshoot the problem.

      When you say you used another ISP(Internet Service Provider) what do you mean. (To me, using another ISP would be like changing from a @comcast email address to @timewarner email address.) In this case if you are at an office where Comcast is the ISP, you may be able to only connect to Comcast via Port 25.

      Did you perform a Telnet test to verify the Ports are not blocked? If not, how did you confirm the ports were not blocked?

      Do you have Webmail, are you able to login there?

      Once again, when you setup the test email account, are you using the same ports? There are typically 2 ports you can use for incoming, and 2 for outgoing (they are listed in your email settings).

      Since it is asking for the password it sounds like it is hitting the server, but the username or password credentials are not verifying. Have you contacted your email host to confirm they see you connecting to the server in the Mail logs?

      The next step would be reviewing your DNS (specifically your MX record) to ensure it is pointed to the right server. Then, performing a Ping and Traceroute to your mailservers, to see if there is a network issue in route to the server.

      If you have any further questions, feel free to post them below.
      Thank you,


  • Hi,

    I am experiencing a weird problem. all of a sudden all our e-mails at the office stopped working. You press send and rceive and it keeps asking for the password. funny enough we tried anothe ISP and everything worked. my question what made the e-mails to stop with my primary ISP since we tested with them and they are not blocking any ports and the public IP they gave us is not blacklisted anywhere. I am suspecting our hosting company but why would the e-mail work with another ISP.


    Please give me your views and help.



    • Hello Mike,

      Thank you for your question. We are happy to help, but since it could be several things we would need additional information.

      Have you contacted your email host to see if they rotated/changed passwords for your email accounts? Sometimes we are forced to do this when we suspect a compromised/hacked account.

      Also, make sure there aren’t any issues with your account, such as a missed billing date, or expired credit card?

      If your host has Webmail, have you tried to login there?
      What domain is having trouble? Have you checked to make sure it hasn’t expired? You can see the expiration date via Whois lookup.

      When you setup the test email account, are you using the same ports? There are typically 2 ports you can use for incoming, and 2 for outgoing (they are listed in your email settings).

      If you have any further questions, feel free to post them below.
      Thank you,


  • Hi . okay i did what you asked . i used the test email address to send you guys something to see . So please let me know if you have some good news along with some answers or solutions to my emailing problem okay . 

  • Okay understood . but question where do you want me to try this email test thing you just sent me . i mean on what should i try it on .<strong>docs@inmotionhosting,com</strong> . And no i am not adding any pictures or attachments to the email i’m sending to those abroad & the messages i recieve from those friends of mine i mentioned from abroad are in email message english like not text like . And what kind of details would you like me to lay out for you exactly . So you can help me further . 

    • Hello Daniel,

      We are just asking if you will send an email to us at the address the same way you are sending it to your friends. This way we can see how it comes out on our side. If it comes out garbled, we may get another clue as to what is going on.

      Kindest Regards,
      Scott M

  • Hello . what do you mean send you an email sample .

    Do you mean something like this in full . A)


    If this what you mean by what you’re telling me you need inorder to find out the problem then please let me know what progress you’ve made in solving the problem . 

    Oh & just so you know i’ve been using & sometimes & to send email messages through these email addresses abroad before giving the mozilla thunderbird a try . 

    • Hello Daniel,

      Arnel means to send him an email to or the same as you are sending to your friends. By receiving the email and taking a look at it, it may give some clues as to what the issue is.

      To recap as to what you have described to us:
      You send email from either Yahoo or Hotmail using NO client (Thunderbird) to send email to your friends on several different platforms. All emails are coming out garbled in the end. You want to know if Thunderbird will help keep the emails from being garbled.

      Since more than one platform (Yahoo, hotmail, etc) is messing up the message and all recipients on different platforms are getting garbled messages, it sounds as if it may be the way the message is being created or sent.

      Please send a test email to docs@inmotionhosting,com (be sure to tell us the Subject of the email so we can find it) so we can take a look at it. Also, please tell us more details about the message, is it in English? Is it all text? Or are you adding some sort of attachment to the email?

      As you do not seem to be one of our customers, we are unable to check into the server, so we need you to tell us the details as we are flying blind otherwise.

      Kindest Regards,
      Scott M

  • Hello . Again . It’s me . 

    look i don’t normally like to trouble any one or body to much on things that are maybe nearly out of there limits & understandings . but when i’m looking for answers & a way to fix something i need help in doing that from any experienced professional that might know something about something . And when i asked & showed & explained to you the problem i’m having i was hoping you could explain to me in a few details on what to do like how to adjust the mozilla thunderbird email sending settings & see if what i sent through this time to those i want to from abroad will recieve my email messages okay & clear to read . And not come out like this – eBIK gmBCFIK iU diPR amqzGP jEG lqvFH qxGN BJT iBQ pCGPY uxN bP tBIQVW ntwAW xCGZ ABP ciJ on there side & not easy to read . So i’m asking you again if you know any other way for me to send emails messages to my friends abroad with out them coming looking like this – eBIK gmBCFIK iU diPR amqzGP jEG lqvFH qxGN BJT iBQ pCGPY uxN bP tBIQVW ntwAW xCGZ ABP ciJ on there side please tell me okay . i really need an answer or a solution to this problem .  

    • Hello Mr. Roberts,

      We (the Community Support Team) have had years of experience in dealing with email servers and email clients and none of us have really seen the problem you’re having. I’ve seen when there are issues with looking at an encrypted email, or one that’s in a different format. Can you please specify how you are sending the email? What client/program are you using? Do you have any specific settings? I have a Yahoo, Microsoft, Gmail, Facebook, and some other types email addresses that I can use for testing. If you want, send me an email: I can look at the email and see if there’s anything odd with the content.

      At this point, we just need some information about how you’re sending email, and an example of the content of the email itself.

      Kindest regards,
      Arnel C.

  • The email addresses of the people from abroad that i received . which i am using on or . are going through okay . but are coming out on there side crippled or maybe encoded in a way that can’t be read . My question from the beginning was that if i where to use mozilla thunderbird & these email addresses in it would work will the email mesaages i send go through & come out clear & easy to read instead of encoded or crippled . if that is the case then i wish to know the neseccasry deatils on how to make that happen . And more importantly what to adjust & set correctly in the mozilla thunderbird so that the emails i send go through okay . 

    • Hello Daniel,

      I have never seen nor experienced the error you are describing. We are just trying to find out through deduction, trial and error, and educated guessing. If the emails are being sent by you from both hotmail and yahoo directly (without a client) and coming out garbled on all recipients Thunderbird will not likely help. It sounds as if something is going wrong during the creation of the email, even on both email providers. You can attempt to send a test email to us at Please be sure to reply with the subject used so we can find it as we get thousands of emails a day.

      Is the email you are sending in simple text, no attachments, and in English?

      Kindest Regards,
      Scott M

  • Hi . it’s me again . 

    okay well it’s like this . first i was sending the emails to those who i mentioned live in america & london through & . And the email addresses all had different features which i’m about to share with you . 






    And truth be told . yes . i am now using the mozilla thunderbird . 

    So if there’s anything you can tell me & show me through any idea or details you can explain &  send me will be help full . Cause i really want my emails to go through to these new friends i’ve made okay & clear & okay to read instead of crippled & encoded on the other side when they recieve them . 

    • Hello Daniel,

      What I hear is that you are using a ThunderBird client to send from either your yahoo or hotmail account to various different people using various different email providers. They all receive the email in some weird alternate format so they are unable to read it. If I am correct so far, it seems the constant in this is the Thunderbird client. What happens when you send an email from the direct interface of either Yahoo or hotmail to one of the people? Is the email still jumbled?

      Kindest Regards,
      Scott M

  • Hey hi . you asked me what kind of error problem . i’m experiencing when i’m sending emails to those abroad like america or london etc . well have a look –  nuvOZ bcnqW opwMUY ejpyFHOT jquLNPXY bhtvxy ouwADN mCFLV fhryAU iswyzIV gijtwPTW fitG vyGIOTUV cm fjSY bkzDQX aegop opsJ afCFLNPT dU dfguHKVW “ – this is how it’s coming out on the other side to those who i’m emailing to . so if there’s away to fix this problem please provide me with some answers & details asap please . 

    • Hello Daniel,

      The problem you’re seeing is still vague because we cannot view your mail logs or see any specific error messages that may be occurring with your email. If you have an account with us, then please provide a domain name so that we can look at your emails and see what’s happening.

      Mail that is sent is NOT changed by the delivery. It may have been written in a particular language, or character set that people receiving it are not able to view properly. OR, it may be that you’re encoding the message (which can be done for security), and the message is not being coded on the receiving end. Encoding a message is done purposefully for privacy/security, so it would depend on the email client that you’re using.

      When you make the email, are you using a specific email client? For example, are you using Microsoft Outlook or Mozilla Thunderbird to write email and then send it? If so, it may depend on the settings you are using.

      If you require further assistance on this issue, please provide us a little more information and then we can look into it further.

      Arnel C.

  • Hey . So let me get this straight . the reason why when i send an email to someone abroad to america or london . It comes crippled & not easy to read because of the way different servers from different companies work . Or is it the other way around like when you’re using for instance mozilla thunderbird you have to adjust a few things in the outgoing server (SMTP) authentication & then type something like this to in order for the emails you send to go through & then come out okay & not crippled on the other side . Give me the full details to know that either i’m right or not about the idea . 

    • There are many reasons why mail may fail to send. Could you provide us with the specific error you are receiving?

  • I appreciate you looking into this as I do not have access to the servers at InMotionHosting and am just a “middle man” if you will. I could only verify the user existed on my end. 

    However, the user exists on the server NOT hosted with InMotionHosting. The sender is from the other server and the recipient is on the InMotionHosting server. 

    Without saying specifics over this forum, are you able to see if the other user above exists? If not, I will have the owner of the account contact support directly with the same information as above.


    • The error that we are seeing is in regards to mail being sent from the server, and it specifies “moe” as the sender. Since that user did not exist, then it could not be sent. The other user you mentioned does not exist either.

      Arnel C.

  • All users exist on each server.

    Mail programs are using proper SMTP authentication based off the above recommendations and have full email addresses as users with corresponding passwords.

    • Hello Corey,

      We looked specifically for the time of the error message above in the mail log. Then we identified the user sending the message. When we looked in mail accounts for that domain, the user does NOT exist. This is why the message could not be sent. The message is looking for “”.

      Arnel C.

  • I’m experiencing the error listed in the original post. Below I am including my SmarterMail delivery logs and the telnet test to the server using InMotionHosting mail services. 

    We have multiple domains using servers with another Hosting company and multiple domains using InMotionHosting. NONE of the domains between the two host are able to send or receive mail at this point in time.

    Email addresses were renamed in logs below as well as IP addresses were partially removed.

    **The IP listed as 2XX.1XX.1XX.2XX is the server with InMotionHosting.**


    As far as I am aware, all users are authenticating whith Outlook or Live Mail.



    Delivery Logs for 7-9-14

    14:06:05 [20025] Delivery started for at 2:06:05 PM
    14:06:20 [20025] Skipping spam checks: No local recipients
    14:06:23 [20025] Sending remote mail for
    14:06:25 [20025] Connecting to 2XX.1XX.1XX.2XX
    14:06:25 [20025] Connection to 2XX.1XX.1XX.2XX succeeded
    14:06:28 [20025] RSP: ESMTP Exim 4.82 #2 Wed, 09 Jul 2014 10:50:54 -0700
    14:06:28 [20025] RSP: 220-We do not authorize the use of this system to transport unsolicited,
    14:06:28 [20025] RSP: 220 and/or bulk e-mail.
    14:06:28 [20025] CMD: EHLO
    14:06:28 [20025] RSP: Hello []
    14:06:28 [20025] RSP: 250-SIZE 52428800
    14:06:28 [20025] RSP: 250-8BITMIME
    14:06:28 [20025] RSP: 250-PIPELINING
    14:06:28 [20025] RSP: 250-AUTH PLAIN LOGIN
    14:06:28 [20025] RSP: 250-STARTTLS
    14:06:28 [20025] RSP: 250 HELP
    14:06:28 [20025] CMD: MAIL FROM:<> SIZE=1189
    14:06:29 [20025] RSP: 250 OK
    14:06:29 [20025] CMD: RCPT TO:<>
    14:06:29 [20025] RSP: 550-Verification failed for <>
    14:06:29 [20025] RSP: 550-No Such User Here
    14:06:29 [20025] RSP: 550 Sender verify failed
    14:06:29 [20025] CMD: QUIT
    14:06:30 [20025] RSP: 221 closing connection
    14:06:30 [20025] Delivery for to has completed (Bounced)
    14:06:32 [20025] Delivery finished for at 2:06:32 PM    [id:344920025]

    19:44:22 [20309] Delivery started for at 7:44:22 PM
    19:44:37 [20309] Skipping spam checks: No local recipients
    19:44:40 [20309] Sending remote mail for
    19:44:40 [20309] Connecting to 2XX.1XX.1XX.2XX
    19:44:40 [20309] Connection to 2XX.1XX.1XX.2XX succeeded
    19:44:40 [20309] RSP: ESMTP Exim 4.82 #2 Wed, 09 Jul 2014 16:29:06 -0700
    19:44:40 [20309] RSP: 220-We do not authorize the use of this system to transport unsolicited,
    19:44:40 [20309] RSP: 220 and/or bulk e-mail.
    19:44:40 [20309] CMD: EHLO
    19:44:40 [20309] RSP: Hello []
    19:44:40 [20309] RSP: 250-SIZE 52428800
    19:44:40 [20309] RSP: 250-8BITMIME
    19:44:40 [20309] RSP: 250-PIPELINING
    19:44:40 [20309] RSP: 250-AUTH PLAIN LOGIN
    19:44:40 [20309] RSP: 250-STARTTLS
    19:44:40 [20309] RSP: 250 HELP
    19:44:40 [20309] CMD: MAIL FROM:<> SIZE=518
    19:44:40 [20309] RSP: 250 OK
    19:44:40 [20309] CMD: RCPT TO:<>
    19:44:40 [20309] RSP: 550-Verification failed for <>
    19:44:40 [20309] RSP: 550-No Such User Here
    19:44:40 [20309] RSP: 550 Sender verify failed
    19:44:40 [20309] CMD: QUIT
    19:44:40 [20309] RSP: 221 closing connection
    19:44:40 [20309] Delivery for to has completed (Bounced)
    19:44:43 [20309] Delivery finished for at 7:44:43 PM    [id:344920309]



    Also Telnet tests to the hosted with InMotionHosting returns the following.

    >telnet 25 ESMTP Exim 4.82 #2 Thu, 10 Jul 2014 11:06:0
    7 -0700
    220-We do not authorize the use of this system to transport unsolicited,
    220 and/or bulk e-mail.


    Any help would be greatly apprecaited, this has been an issue since last week and We would like to get this issue resolved.

    • From the information provided, it appears that you are trying to authenticate as a user that does not exist. Ensure that your software is properly configured to authenticate as the full email address, and that the email address that you are sending from is fully created on the server.

  • Error 17099 is a common issue for outlook Mac 2011 as well as its ancestor version Entourage. Apart from issue in account setting, a corrupted email of sent item is another reason for problematic situation. In this context, you need to repair backup file of Mac 2011. This repair process can be done through advanced OLM repair software.

  • Hello Scott M,

    I checked all filter of sender account, i didn’t got any message filter. I putted a mail to rediffmail customer, i got below message.
    Dear User,
    Greetings from

    With regards to your query, we find your domain is been blocked as it is blacklisted on the server.

    We request you to go on below link and whitelist your domain name from there.

    Please feel free to contact us incase you have any further queries or suggestions.


    • Hello touseep,

      The message you received from rediff says they have placed you on their blacklist. You will need to visit the URL they provided in the email to apply for de-blacklisting.

      Kindest Regards,
      Scott M

  • Hello . How’s it going today . So listen i heard that this site hold the answer to so many email problems many are having problems with & are also looking for solutions to help solve the problem . Well so am i . you see i’ve been having trouble with some emails i’ve been sending abroad to some firends of mine in amreica & Bournemouth & maybe austrailia to . you see the emails i’ve been sending them from my yahoomail have been coming out crippled & not so easy to read on there side . The purpose to all this is that is there a way to send an email through to someone without it coming out crippled & not someasy to read on the other side like america , bournmouth ,austrailia . Can the thunderbird browser software or windows live help with that . please i really need with this problem . Any answer you grant me will be help full.

    • Hello Daniel,

      It depends what you mean by your emails coming through crippled. Do the emails make it through to your friends, but they aren’t displaying the proper content at all, or just certain parts?

      More than likely you’ll want to remove any signature or any formatting at all from your Yahoo account if that is causing the issues. If you setup an email account in Thunderbird then that should also help.

      – Jacob

  • hi Jacob,

    I did’t get you.whom i want to contact web hosting or domain people.Why they added our domain to blacklist???

    • Hello touseep,

      You will want to contact the people you are trying to email via either another email address, phone, etc. and ask them why your regular email address has been blacklisted. They may be willing and able to remove it so you can send email with that address once again.

      Kindest Regards,
      Scott M

  • Hello John-Paul,

    I got that error message but i want the solution. In my google account 40 peoples are there.

    Every one is not getting that problem some people they are getting that error message, anyway they are belongs to same domain. why i am getting that probelm. plz solve my problem…

    Delivery to the following recipient failed permanently:

    Technical details of permanent failure:

    Google tried to deliver your message, but it was rejected by the server for the recipient domain by [].

    The error that the other server returned was:

    553 sorry, your envelope sender is in my badmailfrom list (#5.7.1). REF-ID : MBFD

    • Hello Tousep,

      The problem that you’re facing is explained in the bounce-back error you’re receiving:

      553 sorry, your envelope sender is in my badmailfrom list (#5.7.1)

      Their mail server is responding and letting you know that the mail server you’re trying to mail, has your envelope sender in their badmailfrom list.

      Meaning that either your email address, or your entire domain name has been added to a blacklist on the remote server side. You’d need to contact the person you’re trying to send you email to via alternate means and ask them to remove you from their email filters.

      – Jacob

  • formats showm browers ,we dont do anything, please change the old format for us . For info iam can’t email document to my office use.So please again to change old once formats email .



    • Hello Asry,

      We have not changed the way that email clients connect to our servers. All that is needed from our side are the settings described above in the article. If you are receiving an error, please reply with your settings so we may take a look along with the specific error message and which email client you are using (macmail, outlook,etc)

      Kindest Regards,
      Scott M

  • Dear Sir/Madam,

    We have a domain called whenever i am sending any mail to rediff mail account i am getting below error message. Please solve my problem as much as possible.

    Delivery to the following recipient failed permanently:

    Technical details of permanent failure:

    Google tried to deliver your message, but it was rejected by the server for the recipient domain by [].

    The error that the other server returned was: 553 sorry, your envelope sender is in my badmailfrom list (#5.7.1). REF-ID : MBFD

    • Hello helen.smith,

      Thank you for contacting us. We are happy to help you, but I am not sure what you are asking.

      Please provide more information is you still need assistance.

      If you have any further questions, feel free to post them below.
      Thank you,


    • Hello Tousep,

      Thank you for your question. We are happy to assist you, but will need more information.

      Are you using POP on both the phone and computer? It may be better to use IMAP on both devices, since it leaves the email on the server and is available on multiple devices.

      Also, make sure your Outlook is updating regularly, you can set the update interval in the settings.

      Also, make sure emails are not being caught by a spam filter or rule settings in Outlook.

      If you have any further questions, feel free to post them below.
      Thank you,


    • Hello Tousep,

      Thank you for contacting us today. Please see our guide on the Email error 553, it explains the causes and solutions for the error.

      If you have any further questions, feel free to post them below.
      Thank you,


  • Dear sir/Madam

            My self is touseep. I am using microsoft outlook 2010 and i have samsung andriod mobile phone, in that also i configure the mail using pop and smtp protocols. I am using single gmail account to synchronize to my mobile as well as to my outlook. I am getting all mails to my mobile phone but some mails are missing in my outlook. If i am online in outlook then i am getting all mails but if i am offline some mails are missing plz give me solution….

  • for what it’s worth — had this problem and port 25 was NOT blocked. for reasons i haven’t figured out everything worked beautifully after i switched the account from IMAP to POP3.

    • Hello ak,

      Thank you for contacting us. If you were using Outlook/Office365, there is a known issue with IMAP that may have affected you.

      Also, if there are a lot of emails in your inbox, IMAP can have performance issues. Archiving older emails can help.

      If you have any further questions, feel free to post them below.
      Thank you,


  • My law partner uses Round Cube for her email.  She is having trouble sending emails from her Wiindow’s based machine using Google Chrome.  When she clicks “Send” it takes a long time before it acutally completes the sending of the email.  We’ve done searches and some message board postings indicate that you should change some line of code in the configuration or registry settings, which is an operation beyond our level of technical competence.  The problem occurs on multiple wifi networks, so this is not specific to any particular internet setting.  

    • Hello Joe,

      Thank you for your question. If there are a lot of emails in her Inbox, it is possibly the cause; because it takes time to load and list all the emails.

      Moving older emails to a separate folder, or deleting them can help with the load time.

      Also, we can automatically archive her emails by month as a courtesy. Read about how our automated IMAP archiving works.

      It may be helpful to contact Live Support at the time of the problem, so they can review the email logs in real-time.

      If you have any further questions, feel free to post them below.
      Thank you,


  • I’m getting these messages on and off since noon. Blocks emails we want to send are returns emails to senders.

    Mail Delivery System <>
    10:31 PM (6 minutes ago)
    to Michael
    This message was created automatically by mail delivery software.
    A message that you sent could not be delivered to one or more of its
    recipients. This is a temporary error. The following address(es) deferred:
    > Domain has exceeded the max emails per hour (260/250 (104%)) allowed. Message will be reattempted later
  • I am encountering a similar problem as Kerri had.  I am using Outlook 2013 on Windows 8 with a email account.  The email works fine on other computers.  The email settings are as follows:

    Account type: POP3

    Incoming mail server:

    Outgoing mail server:

    Incoming server POP3 port: 995 (SSL encryption box checked)

    Outgoing server SMTP port: 587 (TLS encryption – also tried Auto and had no luck)



    I am able to receive emails and REPLY TO EMAILS.

    I cannot send a new email.  It will go into the outbox and then appear in the sent items folder, but will not actually go to the email address.  I’ve tried to send HTML, Rich Text, and Plain Text

    The test email does send a proper test to myself.


    Any help will be greatly appreciated.  Thanks.


    • Thanks for further information on the topic. When sending to another individual, does it actually reach them but stay in the outbox for you or does it never reach the recipient? Have you checked with Comcast to see if they are getting anything on their end at all? They may be able to provide the missing piece of the puzzle from the mail logs on their servers.

      We also answered a similar question, where a user was able to send from Outlook, but could not receive any emails. That answer may be able to assist you as well.

  • Problems with outgoing mail from outlook… tryed changing many times still an issue I have 3 other e-mail accounts working fine, for some reason this one will not work right.

    error code 553 5.7.1.

    Help anyone?



    • Hello Todd,

      Sorry to hear about your email problems with Outlook. In looking at that error code you have reported, I’m seeing the following from Microsoft 550-553 errors:

      “The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was ‘‘. Subject ‘‘, Account: ‘‘, Server: ‘‘, Protocol: SMTP, Server Response: ‘553 sorry, that domain isn’t in my list of allowed rcpthosts (#5.7.1)’, Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC79.

      If you read further, it basically says that some ISPs block email they mark or identify as unsolicited email (spam). The email is never delivered because of this issue. Since, you have given very little information (no email address or domain name), it’s difficult for us to pinpoint the exact problem you are having. If you can provide more information then we can investigate the issue more thoroughly.

      Please remember that posts on the support center are public. If you wish to handle this matter privately, then please submit a ticket for our technical support with further detail on the issue. A complete header from any bounces would be helpful as well as domain and specific email account information.

      Kindest regards,
      Arnel C.

  • I have some problems with outlook too, I have done about anything thats in my power to deal with this. I bought a domainname and made an outlook 2013 account, and when i try to log in to another pc or make a new account it does not work. So i now go to the mailsystem via the domainname, now i can receive messages but not send.

    these are the errorcodes: Log onto incoming mailserver (IMAP): The IMAP server issued an unrecognized greeting.

    and: Send test email message: the server responded: 421 Cannot connect to SMT


    Also, on my site there is a very helpfull way of becoming a customer, just type your name and email, after that i would get a message with the potential customer, but ive tried and does not work. But everything works on the pc i first made the outlook account. 

    • Hello Jawad,

      Sorry to hear you’re having problems with Outlook. It’s difficult for us to determine the problem without specific information. If you have an account with us, then providing a domain name allows us to test the server to see if email operations are normal. Additionally, providing further details of the email server settings would also help to clarify the problem. Please provide us some further information and we would be happy to help.

      Arnel C.

  • Anyone can help me.

    i was using my 3 business emails on window live mail but Recently i have changed my hosting and recreate new emails with the same name but new email ids not working in window live. how to reconnect my emails to live mail and i dont want to lose my data..

    Please help me..and sorry for bad english


    • Hello gaurav, thanks for your comment.

      If you’ve recently changed your hosting, then it’s possible that the mail server settings you have in Windows Live are now incorrect. You might need to change your incoming mail server setting to match your new hosts requirements.

      When you say the email ids are not working, do you mean you can’t connect to the server and download any new mail at all? Or do you mean that you can connect and get new mail, but you’ve lost the ability to retrieve older messages for these accounts since switching hosting?

      – Jacob

  • Thanks for the tips, but my IMAP email settings are correct.  I can log into webmail without issue; I just can’t send from my IMAP account through Outlook 365. Any other suggestions or resources would be greatly appreciated.  Thanks again 🙂

    • IMAP is used for receiving mail, while SMTP is used for sending mail. Do you happen to be using port 25 to send mail? Your ISP may be blocking the port so I recommend trying port 587.

  • MS Outlook 2013 will not send messages, except Microsoft Outlook Test Messages.

    I have tried changing ports for SSL and non-SSL as described on this page (and as directed by Jacob, thank you :)), I have tried using my IP address for the incoming and outgoing server, and I have tried having my mail directed through my server, but nothing works.  I have spoken with the tech support people at Bluehost, but they couldn’t help, either.

    What is most confuising is that Test Messages are sent easily, but anything I try and send myself gets caught in the OUtbox and won’t ever send.

    I would really appreciate some help, please.

    • Hello Kerri,

      I’m sorry to hear about your problem with sending emails. First, we unfortunately have no account information for your issue, so I can’t test to see if there actually is a problem with your account. Also, if you’re receiving email, then it’s a good chance that there probably isn’t anything wrong with the email server. You should check and see if you can send an email through the webmail client. Click on the link and it will bring you to a tutorial on using webmail. This way, you can check to see if your login credentials are actually causing the problem. If you are unable to login, then you should login to cPanel to edit the email account login info for the user you are using. FYI – you should be checking email using an account created with the email option in cPanel (not using the cPanel user name). An example of a cPanel user name would look something like: example5. The email address you’re using to setup Outlook should look like this: For more information, please see How to create an email account.

      I hope this helps to resolve your problem. Please be aware that you can also contact our live technical support team via phone/email/chat 24/7 for immediate support.

      Kindest regards,
      Arnel C.

  • Hi Jeff,


    I carried out the steps outlined in the above article to test port 25 and it passed the test at the time and still does so now.  I tried port 587 just for giggles and got identical results.


    I spent upwards of 10 hours in direct connections with the folks at Malware Vytes … they were extraordinarily helpful … together we found all kinds of malicious “PUP” programs placed by advertisers to track my browsing and other behaviour, stuff which had slipped throuigh normal security precautions,  and we were able to outst them.  for awhile this still did not seem to repair the problem hwever at the last minute a security update patch from Microsoft was installed spontaneously and afterward my normal functionality returned.

    Thanks for your attention,



    • Thanks for letting us know that everything worked out okay. Please let us know if you require any further assistance in the future.

      Arnel C.

  • port 25 is not blocked.  settings are correct.  email suddenly stopped being able to send, 5 days ago but still receives.  technical support says its not their problem.  comcast says its not their problem.  have cleaned up my machine and expunged all manner of advertising filth and any other possible offender.  still have problem.  what to do?

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