Sendmail and SMTP AUTH

["James W. Thompson, II" <thom2899@bellsouth.net>]

I am trying to get Sendmail setup with SMTP AUTH for send mail from my 
powerbook. I have tried to follow the directions I have found but I am 
new to sendmail and Linux administration in general and am having 
problems, I want a strong authentication setup so that only users of my 
system can use SMTP services to send mail. Also I need a recommendation 
of a secure POP system for receiving mail.

-Dubbs