1. SovereignA set of Ansible playbooks to build and maintain your own private cloud: email, calendar, contacts, file sync, IRC bouncer, VPN, and more.
5. Docker-MailServerONLYOFFICE Mail Server is a full-featured mail server solution developed on the base of the iRedMail package, containing the following components: Postfix, Dovecot, SpamAssassin, ClamAV, OpenDKIM, Fail2ban.