Mac Mail – Cannot Send Message Using the server Updated on August 16, 2021 by Carrie Smaha 0 Minutes, 24 Seconds to Read Email Client: Mac Mail Error Message: Cannot send message using the SMTP server Solution: You will need to update the SMTP server settings – most likely you’re dealing with a port 25 blocking issue. If you are using a SSL on your site you can use the SSL port 465. Make sure the box to use SSL is checked. If not, you can use port 587 and leave the box unchecked. The correct ports are below: Non-SSL outgoing SMTP: 587 SSL enabled outgoing SMTP: 465 Share this Article Carrie Smaha Senior Manager Marketing Operations Carrie enjoys working on demand generation and product marketing projects that tap into multi-touch campaign design, technical SEO, content marketing, software design, and business operations. More Articles by Carrie Related Articles How to Fix the “550 No Such User Here” Email Error How to Setup an Email AutoResponder in cPanel Logging into Horde How to Change an Email Password in cPanel and Webmail How to Purchase InMotion Hosting Professional Email in AMP What is MailChannels and How it Benefits You Email Error – Mailbox Quota Exceeded How to Archive Email Using IMAP Upgrade to iOS6 causing IMAP issues How To Set Up Gmail for POP3 and SMTP
i’m need to send a “global” email to approx 135 users. As i’ve had this problem before, (Cannot send message using the server Hotmail), I’ve been forced to break up the number of users per send. Two the of iterations worked fine, the third and the smallest received the error and won’t continue. tried using all the different ports lised on the support website with no success. This problem persists everytime i’m required to send out a global email. getting kinda tired of it. Could use some help. thanks
