Kolab
The facts below are what the maker publishes about Kolab, checked and dated. Our editors have not written about it yet.
Plans and prices
From Kolab's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Kolab | Free | Open-source product · self-hosted |
The facts
Each one read from Kolab's own pages, with the date it was checked.
What it does
- Calendar and tasks
- Kolab supports shared, colour-coded calendars, recurring events, time-zone support, invitation handling, to-do lists and task assignment.checked 9 Oct 2026
- Collaboration
- Kolab provides shared email folders, calendars and task lists with granular access control, video conferencing and collaborative document editing.checked 9 Oct 2026
- Compliance and backup
- The feature page describes Kolab as GDPR, HIPPA and PCI compliant and lists on-premise deployment and data backup.checked 9 Oct 2026
- Deployment
- Kolab is packaged as containers that can run on one host or be distributed across a larger environment.checked 9 Oct 2026
- Deployment requirement
- The quickstart says a publicly available non-clustered deployment requires one public IP and warns that email sending and receiving and WebRTC will not work without one.checked 9 Oct 2026
- Email features include full-text search, filtering, aliases, identities, distribution lists, spam protection and PGP encryption.checked 9 Oct 2026
- Intended users
- Kolab describes itself as a solution for companies and families that need to work and communicate together while retaining control over their data.checked 9 Oct 2026
- Paid services
- Apheleia IT offers professional services subscriptions for larger organizations, including consulting, infrastructure integration, customization, migration, white labeling and training.checked 9 Oct 2026
- PGP caveat
- Kolab's PGP feature article says the web client can store copies of public and private keys on the server and says true end-to-end encryption requires client encryption.checked 9 Oct 2026
- Product
- Kolab is a free and open-source communication and collaboration solution that can be run on your own infrastructure.checked 9 Oct 2026
- Protocols
- Kolab supports ActiveSync, IMAP, SMTP, CalDAV and CardDAV for synchronizing email, calendars and tasks.checked 9 Oct 2026
- Security
- The feature page lists PGP, two-factor authentication, DKIM/DMARC and spam protection among its email security features.checked 9 Oct 2026
- Third-party clients
- The feature page names Thunderbird, Outlook, eM Client, Apple Mail and Apple Calendar as supported third-party clients.checked 9 Oct 2026
The company
- Maker
- The site identifies Apheleia IT AG as the organization behind Kolab.checked 9 Oct 2026
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