The dovecot daemon, maintained by the Dovecot Project, is a modern IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. Dovecot is an excellent choice for both small and large installations. It’s fast, simple to set up, requires no special administration and it uses very little memory.

The debops.dovecot Ansible role can be used to configure the dovecot service on a host and to automatically setup various auxiliary roles, such as debops.pki for SSL/TLS encryption.