[Ubuntu 20.04] Install & Setup Mail Server, IMAP/POP3 server and EMail Client

Install and set up Postfix (Mail Server), Dovecot (IMAP, POP3 server), Mutt (Email client) in Ubuntu 20.04 server.

Mutt colors: https://gist.github.com/b3n10/2c00e25400a693711521bd97362fb54f

source

ubuntu 20.04