Alinto/sogo
SOGo 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. observed · 2026-08-28
Health v2 · maintenance only
94/100
- Activity 99
- Release rhythm 85
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 40.0
- age_days: 5097
- days_rel: 20
- days_push: 8
- n_releases_24m: 13
Adoption not part of the score
2153 stars · 319 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
SOGo is an open-source groupware (collaboration) server offering webmail, shared calendars, address books, and tasks. It uses open standards like IMAP, CalDAV, CardDAV, and ActiveSync to provide native connectivity to clients such as Outlook, Apple devices, Thunderbird, and mobile phones.
Use cases
- self-host a webmail and calendar server for my organization
- share calendars and address books across a team
- sync email, contacts, and events with iPhone and Android via ActiveSync
- replace Microsoft Exchange with an open-source groupware suite
- provide CalDAV and CardDAV endpoints for Apple Calendar and Thunderbird
- give thousands of users a scalable web-based collaboration interface
When to choose
- you need a self-hosted, standards-based alternative to Exchange or Google Workspace
- you want native client support (Outlook, Apple, Thunderbird) without plugins
- you need proven scalability for large deployments with thousands of users
When to avoid
- you only need a lightweight mail transfer agent or simple IMAP server without groupware features
- you want a modern single-page app stack rather than an Objective-C/SOPE-based server
- you need a SaaS solution without server administration
Facets
application · maturity stable
http-server email scheduling web-framework self-hosted email developer-tools web-development self-hosted groupware caldav carddav webmail activesync imap collaboration objective-c linux web-server
4 sources
- readme: https://github.com/Alinto/sogo · fetched 2026-08-28 · 2fdc81e5668e
- homepage: http://sogo.nu/ · fetched 2026-08-29 · b5fec16e853d
- site_page: https://www.sogo.nu/about.html · fetched 2026-08-29 · 21f8dc64eddc
- site_page: https://www.sogo.nu/frequently-asked-questions.html · fetched 2026-08-29 · 9722c1af5805
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Alinto/sogo | main | 94 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem