Modoboa

Modoboa is an open-source email server that comes with a modern web interface for administration. Its pitch is that running your own mail server should not require deep technical knowledge: the project says setup takes under ten minutes. It positions itself against paid mailboxes from internet providers, free webmail services that monetize your data, and doing everything by hand.

Under the hood it brings together established open-source components, including Postfix, Dovecot and Rspamd, behind a single interface. The resulting server offers the usual hosting features: webmail, calendars, address books, filtering rules to organize messages, an auto-responder, and unlimited domains, mailboxes and aliases. An administration panel covers managing all of these.

Modoboa is written in Python with Django and a Vue front end, and it is released under the ISC license. You host it yourself, which suits small businesses, associations and individuals who want control over their email and privacy. The website also lists a Modoboa Pro offering and a sponsoring page for supporting development.