MTA Postfix, Courier, etc

Which MTA is the easiest one to learn? I tried to learn how to use Postfix, but I got a fairly confused.

Basically I just need to have the mail server manage 5 or 6 virtual domains.


Thanks!

 

Exim plus vexim ( a web interface for virtual domains ) Is all pretty easy to install and use

 

I think Postfix is pretty easy, at least compared to Sendmail.

Here are some Postfix tutorials: http://www.howtoforge.com/taxonomy_menu/1/4