email setup help

im not a total noob but i cant seem to get mail working and could use a little help. i have virtualmin pro and no matter what i do i cant seem to get emails to send or recieve from the server. have read everthing associated on the site including support ticket but something just is not right. this is the only issue left then i can shut down my old server until then i currently am forwarding one domains mail to the old server ip so i still have all the reguler email. contact me here or email was123@ircjunkys.com