after opening all the recommended ports on the firewall to allow traffic to the zimbra server, Port 25 does not appear to able to be accessed, (the old story where you can send email to a destination but cant receive it with a reply. )I tried telneting to the port which does not appear to be open. Other ports can be telneted to.. eg port 110. so what i did was try telnet to the port internally which does work on port 25.
So I was thinking it had to be the firewall, but every port is set up with the same configuration. nothing different, its got me a little stumped. the zimbra.log file doesnt help me at all with SMTP connections. cant see any.
I then tried 1:1 on the firewall, with still no luck
the firewall is a pfsense box, using VIP just for the mail server
any help would be grealty appreciated