Mailman

Your Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts.

Access GNU Mailman v3 archives.

Lets you have an infinite number of unique inboxes.

Web user interface to access GNU Mailman.

Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API.

Apprise allows you to send a notification to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc.