> Thanks for the information. I will look into this since the LAN administrators are telling me that all mail here is handled thru the MSMail system and therefore they " have no information to give me on the POP3 or SMTP servers."

if by MSMAIL they refer to Exchange (or windows messaging as it is now called) they still have to determine a gatway through which mail is sent
the gateway is the SMTP server (Simple Mail Transfer Protocol server)
and the server that is used to get email is the POP server (there are some occtions when these are the same address e.g. mail.ispname.net)

Arnom