Dovecot on Ubuntu and Cent OS

Dovecot is a Mail Delivery Agent, written with security primarily in mind. It supports the major mailbox formats: mbox or Maildir. This section explain how to set it up as an imap or pop3 server.

To install dovecot

[mmr@pas]apt-get install dovecot-imapd dovecot-pop3d

To configure dovecot  
To configure dovecot, we edit the file /etc/dovecot/dovecot.conf
amend the following line in the file starting with protocols =
              protocols = pop3 pop3s imap imaps

                 restart the dovecot daemon in order to test your setup

/etc/init.d/dovecot restart          for Ubuntu
Service dovecot restart              for Cent OS