mailcow
servercow.de · current 2026-07
The current version of mailcow is 2026-07 (as of 14/07/2026). patchletter checks the official source daily and emails you every new release.
mailcow at a glance
mailcow is a popular open-source, Docker-based mail server suite (Postfix, Dovecot, Rspamd and a web UI), widely self-hosted. mailcow ships regular updates via its update script plus security fixes; as an internet-facing mail system, timely patching and hardening are essential.
For admins updates run through the provided update script, which pulls new container images — back up first (mailcow includes a backup script) and read the release notes for breaking changes. A mail server is a high-value, exposed target: keep TLS current, enforce strong authentication, maintain SPF/DKIM/DMARC, and watch for open-relay misconfiguration. The many bundled components each carry their own fixes, delivered together in mailcow releases. After updating, verify mail flow, the web UI and spam filtering. Track the project's releases closely; patchletter surfaces new mailcow updates.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 2026-07 | STABLE | 14/07/2026 | Release notes → |
| 2026-05 | STABLE | 08/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of mailcow?
- mailcow 2026-07, released 14/07/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the mailcow release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new mailcow updates?
- Free by email: patchletter reports every new release — instantly or bundled as a digest. Unsubscribe anytime with one click.
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