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Old 3rd January 2012, 20:44
cbj4074 cbj4074 is offline
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Originally Posted by tbctr View Post
1. squirrelmail compose mail, write and send mail after 404 Not Found page but mail send no problem.
Okay, I see your point here: your server is able to send mail without issue via SquirrelMail.

Unfortunately, I don't know enough about SquirrelMail to know what method, exactly, it uses to do so. It would seem that it uses a method that differs from standard SMTP, as evidenced by the fact that sending mail via SquirrelMail functions as expected. Maybe SquirrelMail uses some PHP method to send mail that bypasses Postfix altogether, hence no problems.

I don't know why you are receiving a 404 during that process, but that issue seems to be unrelated.

Originally Posted by tbctr View Post
2. Microsoft Outlook smtp error. Mail receive no problem. Send mail not connected smtp.
You didn't answer my question. Have you tried sending mail to recipients at domains other than

The reason I ask is that all of the failures in your log (at least within the sample that you provided) are, using the mail delivery server It is possible that / is blocking these connections from your server.

Also, based on this post of yours ( ), as Till said, either:

a.) the ports in question are closed on your server, or
b.) the services are not running on the ports that you think they are, or
c.) connections to the ports are being blocked by a firewall.

I realize that you are convinced that this is not the case, but logic dictates as much.

What happens when you issue the following command from your server's terminal:


Last edited by cbj4074; 3rd January 2012 at 20:46.
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