Install, configure and run mail server on Debian
I want to install configure and run my own mail server in my debain box, but I don't know which programs to install(This is my first mail server installation). I found on internet some how-tos for install postfix-dovecot-squirrel mail, but I am not sure that I want dovecot(I prefer courier email server if it is the same). As I understand I need
smtp mail server -> postfix Mail Transfer Agent
imap and pop3 -> dovecot / courier email server???
webapplication -> squirrel mail
For squirrel mail I am sure that i will install it(I used it on other server and I like it), but don't know for other parts. I read that postfix is good choice, but what other options I have for dovecot?