Resolved Port use for receving mail please ?

[AIRE-B]

Hello,

I have a plesk serveur runing ubuntu server, everything is working fine exept "imap receving mail". All ports listed by plesk are opened in my router but the incoming mail are not reaching my server. When i put my server into a DMZ (all ports are open) the mails are coming. So what is the port used for incoming mail PLEASE ?

 

[Monty]

Incoming mails are delivered via the SMTP protocol, so you'll need to make sure port 25 TCP is open on your server + firewall