If I remember correctly youcan spoof an e-mail using eudore or is it pegasus mail both are free download e-mail clients etc, as far as the telnet scen goes its just a case of

telnet
open somejunkaddy.com 25

read this if you really want to know

http://user.7host.com/phuka/philes/2-hack.txt

and take it from there I wont go into details but you can figure it out from that point just by typpinh help normally.

I regulary send e-mail's from
Code:
[email protected]
("No guessing where that came from") every Xmas to my boys and my friends children, I can get away with it because I use my own linux box to do it, but as you can see it is incredably simple to do.