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Question

Postfix not sending emails

  • Posted November 21, 2013

Hi everyone,

I recently created a droplet with Ubuntu 12.04 and zpanel. I have dovecot and postfix working fine for webmail (roundcube). It sends and receives emails. I’m trying to use thunderbird to manage my email accounts but I can’t send emails through it, only receive. SMTP por is 25.

Ps: I can’t telnet mydomain.com 25 from remote I can telnet localhost 25 from ssh I can telnet 127.0.0.0.1 25 from ssh

Here’s my /etc/zpanel/configs/postfix/main.cf http://pastebin.com/xLAde0uX

a netstat -tupnl will show http://tinypic.com/r/kc14k0/5

my iptables are empty.

I don’t have any MX record registered on DO’s DNS Manager.

Any ideas?

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contato320867 • November 22, 2013

opening port 567 solved the problem. I followed this tutorial: http://forums.zpanelcp.com/thread-9231.html?highlight=postfix <br>

contato320867 • November 21, 2013

I will give it a try on zPanel forums. It was working until yesterday. Not sure what I changed in the files that made it stop working. <br>I will try to enable the other ports to see if that solves the issue. Thanks Pablo

pablo • November 21, 2013

You’re more likely to find people that know how to use zPanel in the <a href=“http://forums.zpanelcp.com/”>zPanel Forums</a>. The <a href=“http://www.zpanelcp.com/support/documentation/”>zPanel docs</a> might also be a good place to look. <br> <br>With that said, I wonder if zPanel is blocking access to Port 25 from the outside world b/c Port 25 is not secure. Have you tried the TLS/SSL SMTP port, instead?