Sendmail configurations

[SkyBlueshoes <skyblueshoes_(_at_)_comcast_(_dot_)_net>]

I've just installed OpenBSD 3.8...my first ever *nix. I've got most up 
and running, but I'm having problems recieving email. I followed the 
guidelines on this page http://www.nomoa.com/bsd/mailServer.htm to the 
letter. All the localhost tests work, but when I try to send a test 
message from out of the domain I never get it. Also, I am not sure what 
my domain would be, but I tried sending to both 
user_(_at_)_server_(_dot_)_skyblue_(_dot_)_mine_(_dot_)_nu & user_(_at_)_skyblue_(_dot_)_mine_(_dot_)_nu_(_dot_)_  skyblue.mine.nu is 
my registered domain name, but the full name of my server is, as you'd 
guess, server.skyblue.mine.nu.

I would gladly appreciation the suggestions as I'm not getting any 
errors, nor am I getting any mail...


SkyBlueshoes