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2025-09c

mailcow/mailcow-dockerized2025-09cOct 7, 2025by FreddleSpl0it

AI Summary

Mootember update focusing on SOGo URL encryption, IPv6 handling fixes, and various UI/UX security improvements.

Key Highlights

  • SOGo URL Encryption support
  • Improved IPv6 and Nginx configuration handling
  • Cookie security updates (SameSite Lax, renamed to MCSESSID)
  • HTTPS redirect enabled by default on new setups

New Features

  • SOGo URL Encryption support
  • HTTPS redirect by default on new setups
  • Rename PHP Cookie to MCSESSID

Full Release Notes

## What's Changed
* [SOGo][Web] SOGo URL Encryption support by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6758
* [Nginx] do not invert ENABLE_IPV6 by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6762
* [Web] Remove Port from HTTP_HOST by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6760
* [Web] Allow wildcard subdomains for MTA-STS by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6759
* [Web] set cookie SameSite attribute to Lax by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6766
* [Web] Rename PHP Cookie to MCSESSID by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/6767
* Update GitHub's issue template by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6772
* Clearer message to install required tool, e.g. jq by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6764
* Make domain description field readonly when no ACL by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6789
* Show "Never" by default if no last-modified date saved by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6788
* Hide relayhosts when ACL does not allow by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6787
* Fix several SQL statements by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6786
* Fixed wrong footer escaping for certain characters by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6782
* Rename password fields for AppPasswords same way for consistency by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6781
* Fixed password complexity check for AppPasswords creation/edit by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6780
* Remove debug console.log calls by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6779
* Enable HTTPS redirect by default on new setups by @patschi in https://github.com/mailcow/mailcow-dockerized/pull/6777
* [Helpers] Fix cold-standby digits in compose project names and inclusion of docker-compose.override.yml by @sdsys-ch in https://github.com/mailcow/mailcow-dockerized/pull/6800
* Fix enabling of ipv6 when updating by @SpaghettiBorgar in https://github.com/mailcow/mailcow-dockerized/pull/6791
* Update variable name for prometheus-exporter security token by @vbrandl in https://github.com/mailcow/mailcow-dockerized/pull/6776
* Fixed typo in lang de-de by @codiflow in https://github.com/mailcow/mailcow-dockerized/pull/6765
* Fix typos in config by @jonasc in https://github.com/mailcow/mailcow-dockerized/pull/6792
* chore(deps): update actions/stale action to v10.1.0 by @renovate[bot] in https://github.com/mailcow/mailcow-dockerized/pull/6806
* [Postfix] update postscreen_access.cidr by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6801
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6771
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6794
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6785
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6790
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6793
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6743
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/6749


## New Contributors
* @sdsys-ch made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/6800
* @jonasc made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/6792
* @SpaghettiBorgar made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/6791
* @vbrandl made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/6776

**Full Changelog**: https://github.com/mailcow/mailcow-dockerized/compare/2025-09b...2025-09c