I'm currently trying out the Virtualmin GPL version for my own little server. Today I was trying to setup the email accounts, but there is a problem.
I've created a DynDNS host, with a email MX with it both directed to my server (called pikachu btw xD) in a NAT environment. But i'm able to send mail to (for example) my normal gmail account, but when I reply to it, it doesnt reach the email account i've made on my server.
I've checked the logs, cant find any good explantion for why it doesnt work because there is no error in the logs.
BTW I'm using Debian 5.0 and yes the ports are opened to my server.