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Title: Can't Send Emails Out - But can receive emails - Please Help!
Post by: petealois on January 05, 2012, 11:39:18 AM

Hello All,

I have a Synology DiskStation and am running its Mail Station (Mail Server) and using a DDNS from No-IP.org. Firewall and Ports are open. I am able to receive email from outside my domain. I can even receive emails from inside my domain. I Can NOT send emails outside my domain like to (optonline.net, gmail.com, verizon.net, my work, etc.) The message that displays in the returned email failure is below. What did I miss from setup?

Final-Recipient: rfc822; [email protected]
Action: failed
Status: 4.4.1
Diagnostic-Code: X-Postfix; connect to mx2.optonline.net[167.206.4.79]:25:
Connection timed out

Thanks in advance for your help!

Title: Can't Send Emails Out - But can receive emails - Please Help!
Post by: oldschool on January 05, 2012, 12:14:49 PM

Quote from: petealois;37852Diagnostic-Code: X-Postfix; connect to mx2.optonline.net[167.206.4.79]:25:
Connection timed out

A debug log would helps a lot...

It seems the connection is lost while or after handshaking.
Could be the config or the wan mail server blocks you, like many other mail services.

Rgds.

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News and Announcements => General Discussion => Topic started by: petealois on January 05, 2012, 11:39:18 AM