courier-imap/pop3d not work with listening to all address

Hi everyone!

I have follow The Perfect Server - Ubuntu 9.04 [ISPConfig 3] and everything works fine exacpt courier-imap/pop3d.

The problem is simply cant access imap and pop3 from external host while working fine with squirrelmail. And I check netstat the port listening correctly.

Base on trial and error, i changed the ADDRESS to single IP and it just work immediately.

My server have 2 IP run on same interface. Actually i am ok with accessing pop3/imap with 1 IP only. Just after my ad-hoc solution ISPConfig Monitor state my pop3 server not running correctly.

Anyone have the same issue and please suggest the right solution.

 

What are the outputs of

Code:

ifconfig

,

Code:

netstat -tap

, and

Code:

iptables -L

?

 

ifconfig

netstat -tap

iptables -L

 

Looks ok. And it's working if you specify an IP in your email client, but not if you specify a hostname? That sounds as if the DNS record of the hostname is pointing to a wrong IP.