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2013-01-01 8:31 pm EST

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My friend sent me an email and it did not reach me... why... error message follows:

Begin forwarded message:
Date: December 29, 2012 6:40:53 PM PST
Subject: Delivery Status Notification (Failure)
This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

Reporting-MTA: dns; Received-From-MTA: dns;BAY171-W131 Arrival-Date: Sat, 29 Dec 2012 18:40:53 -0800 Final-Recipient: rfc822; Action: failed Status: 5.5.0 Diagnostic-Code: smtp;550-"JunkMail rejected - []:55507 is 550 in an RBL, see Blocked - see"
I saw you called been cleaning with my steamer! I can meet from 8 to about 10 I neeed to get ready for my party. Let me know

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we are having the same is the message that we are getting
Reporting-MTA: dns;
Received-From-MTA: dns;BAY174-W17
Arrival-Date: Tue, 15 Apr 2014 09:48:44 -0700

Final-Recipient: rfc822;
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;550-"JunkMail rejected - []:45382 is
550 in an RBL, see Blocked - see"
0 Points
2014-04-15 04:38 pm EST
Hello pjeckman,

It looks like you were attempting to send from a account to our mail server. Because we utilize public blacklists like SpamCop, the message was rejected because it was sent from an IP address that was listed on SpamCop.

It looks like on SpamCop they state in reference to the IP address In the past 3.4 days, it has been listed 4 times for a total of 2.8 days

So it looks like spam is coming out of server's, getting their mailing IPs blacklisted, and then causing outbound emails from yourself to servers that check against blacklists to reject your message.

You can read more about why mail servers get blacklisted, or even how to request a delisting from a blacklist to help understand these issues better.

Unfortuantely, using a free email provider like you have the potential that millions of other users could be spamming from the same mail server IPs that you are trying to use when sending mail through their services. So if you continue to have issues with their mail server IPs getting rejected, you might want to try sending directly from your domain or another source.

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

- Jacob
9,968 Points
2014-04-15 05:00 pm EST
I can't find my inbox. Email.Why
0 Points
2015-03-06 01:11 am EST



9,968 Points
2013-01-01 10:20 pm EST
Hello mmbinv, and thanks for your question.

This looks to have probably been a temporary delivery issue that shouldn't be happening any longer.

If you take a look at the error message from your bounce back, the main part to pay attention to is:

[]:55507 is 550 in an RBL

This means that one of's sending IP addresses was on a black list that our server checks. It got blocked by our spam filters because that IP address had user complaints on

It doesn't look like their IP address is still blacklisted, and more than likely a new IP address will be used for new delivery attempts anyways. I see successful deliveries between the two mentioned email accounts since 12/29/2012 when that bounce back is from.

I hope that answers your question, if you have any more please let us know!

- Jacob

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31,633 Points
2015-03-06 10:46 am EST
Hello beachgirl7374,

Thank you for contacting us. We are happy to help, but will need some additional information. Was your email set up successfully in the past, or did this just begin?

What type of Email client are you using? For example, Outlook, Thunderbird, MacMail, etc.

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

Thank you,

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