Top 10 groupware open source projects

Scan, index, and archive all of your paper documents (acquired by Mayan EDMS)

mailcow: dockerized - 🐮 + 🐋 = 💕

Copper mail : comprehensive email solution which can be readily deployed without complex configurations.

Group Office groupware and CRM

Run sogo in a docker container.

Free Knowledge Groupware

For over 20 years, teams of all sizes have used Cerb to manage their email workloads. Whether you're a solo founder replying to a few support messages per day, or a team with hundreds of members replying to thousands of messages per hour, you can serve your audience faster with Cerb's time-tested tools. Development at: https://github.com/jstande…

I, Librarian - open-source version of a PDF managing SaaS.

BNote - Open Source Ensemble Management

Groupware server backend for the grommunio Distribution, supporting MAPI/HTTP, RPC/HTTP, IMAP, POP3 protocols, PHP-MAPI bindings, and import from PST/OST/MSG/TNEF, EML/ICAL/VCF, KDB