SOGo

SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.

Actively maintained
WebsiteSource codeLive demo

At a glance

GitHub stars
2.2k
Forks
329
Open issues & PRs
49
Last activity
2026-11-02
Latest release
SOGo-5.12.12
2026-10-13
Commits (12 mo)
115
License
LGPL-2.1
GitHub detects GPL-2.0
Language / platform
Objective-C

Maintenance health: Actively maintained — Commits in the last 3 months. GitHub data fetched 2026-11-03.

Run SOGo yourself

  • RAM: ~4 GB server (2 vCPU)
  • Docker: not detected — install from source or packages
  • Storage: plan disk for your data (media/files grow fast); attach a volume or use object storage.

Estimated monthly server cost

ProviderPlan size~ USD / month
Vultr4 GB$20Deploy →
DigitalOcean4 GB$24Deploy →
Akamai (Linode)4 GB$24Deploy →

Rough estimate from the app's stack and category, not a benchmark. Several light apps can share one server. Some hosting links may be affiliate links. We may earn a commission at no extra cost to you; it never affects which apps we list.

Prefer managed hosting? Check PikaPods or Elestio.

SOGo is an alternative to

Microsoft 365

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