I had to install a mail server, to provide virtual hosting, pop and smtp with webmail.

Why did I choose courier ? Sure to let all of you follow my steps and chew your brains.

Courier is hell, That's why you'll end up chewing your brain, perhaps your whole body and other people bodies too!

I'm talking about Debian stable aka woody.

1st, Don't apt-get install the binary debs.

apt-get source courier-mta

Because there is a unique feature in courier, It force you to use one of the freedoms enforced by the GPL, which is: The freedom to modify the source code!

courier authentication authdaemon and userdb.

courier mta, smtp, pop, imap.

squirrelmail

permit users to change their passwords.