iredmail/Ubuntu can't connect client's to smtp server

rubberducky · 05-09-2014, 08:55 PM

Well, roundcube webmail works great. I even added a calendar. My clients love it.
However, whenever I try to sync a device or computer to it via outlook, I get a "Cannot connect to outgoing server" error. Pop3 works fine, but as for sending stuff? I get no love.
I've verified the correct firewall rules:

Quote:

-A INPUT -p tcp --dport 25 -j ACCEPT
-A INPUT -p tcp --dport 587 -j ACCEPT

and in dovecot.conf

Quote:

listen = *

is uncommented. Any idea on how to handle this?

Andy Alt · 05-15-2014, 01:50 AM

Does it make any difference if you add a few options to your iptables rule?

Quote:

-A INPUT -p tcp -m tcp -m state --dport 25 --state NEW -j ACCEPT

There's a 'LOG' option for iptables that may help you troubleshoot.