Knowledgebase: E-mail
Why do I get a bounce back message when ever I try to send emails from my computers' email program?
Posted by Support, Last modified by Support on 31 July 2009 10:10 AM
This issue might occur and look something like this:

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: 

 user-your-trying-to-send-to@their-domain.com
 SMTP error from remote mail server after end of data:
 host smtpgateway.aiso.net [10.1.40.36]: 550 <user-your-trying-to-send-to@their-domain.com>:
 IP 96.251.59.0 listed in DNSBL zen.spamhaus.org

If you get a message that looks similar to this when ever you try to send an e-mail out from your e-mail program on your computer, this is because you are not using the SMTP Auth port. You will need to switch the e-mail programs' SMTP outgoing port from 25 to 587 and make sure SMTP Authentication is enabled with your email address and related password.
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