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Repositories in this selection 5 · UTC 2026-11-04
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1—Mmailcow / mailcow-dockerizedA Docker-based email and groupware suite combining mail delivery and retrieval, spam filtering, webmail, and domain and mailbox administration.JavaScriptGPL-3.0 · Share derivative sourceInsufficient rank history13,7361,864——2026-11-01
2—AAlinto / sogoSOGo is a very fast and scalable modern collaboration suite (groupware). It offers calendaring, address book management, and a full-featured Webmail client along with resource sharing and permission handling. It also makes use of documented standards (IMAP, CalDAV, CardDAV, etc.) and thereby provides native connectivity (without plugins) to many clients such as Microsoft Outlook, Apple iCal, the iPhone, Mozilla Lightning, and a plethora of mobile devices.Objective-CGPL-2.0 · Share derivative sourceInsufficient rank history2,183329——2026-11-03
3—Fflectar / mailBuilt from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 80 MB of RAM.RustAGPL-3.0 · Share derivative sourceInsufficient rank history1,739129——2026-11-02
4—Mmkucej / i-librarian-freeI, Librarian - open-source version of a PDF managing SaaS.PHPGPL-3.0 · Share derivative sourceInsufficient rank history35632——2025-12-02
5—IIntermesh / groupofficeGroup Office groupware and CRMPHPAGPL-3.0 · Share derivative sourceInsufficient rank history28561——2026-11-02
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