Glad I can help out. Very cool that you got them both up and running. You've already got an email server when you installed linux unless you severely limited the install!

Try it

mailx -s "test mail" <youremailaddress>
<enter>
This is a test
CTRL-D
CTRL-D

Can't believe you have everything so neat and tidy. My main windows machine is sitting next to me here on my desk in a wire basket right now! My servers are all neatly tucked away though with their own UPS's and such.

EDIT @C303A, I think DrPop intends to run the linux boxen headless as he should, just need ssh and probably a good dose of 'screen'