In the article on SMTP and Postfix, we set up a simple Postfix server that we could use to programatically send mail with the mail command. In order to have a true and fully-functional mail server, users should be able to login to a mail client where they can read their inbox and send mail remotely. In order to achieve this we need Dovecot, which can store mails received by the server, authenticate user accounts and interact with mail.| landchad.net