My Zimbra mail server, which uses Postfix, is working fine.
I am able to receive mail at 25 from Yahoo, Hotmail etc., but if I block my 25 port for incoming then mail will stop to come into my mail server as my secure SMTP port 465 is already running.
So is there any way to receive mail at another port like on 465 insted of port 25?
Thanking you,
sadiq.