2026-09

Name: mailcow-dockerized
Author: mailcow

mailcow/mailcow-dockerized2026-09Sep 21, 2026by FreddleSpl0it

Upgrading?

What changed from 2026-07b → 2026-09?What's new in 2026-09a after 2026-09?

AI Summary

This release focuses on improving web interface usability and security, adding features like password toggles and controls for external alias routing. It also addresses a critical authentication caching issue and updates core components including Unbound and SOGo.

Key Highlights

Added show/hide password toggle on login pages
Added ACL and global switch to disable external alias goto
Fixed critical auth cache wipe issue during nginx outages
Updated Unbound to version 1.26.1 and SOGo to version 5.12.11

New Features

ACL + global switch to disable external alias goto
Show/hide password toggle on login pages

Full Release Notes

## What's Changed

### Features
* [Web] Add ACL + global switch to disable external alias goto by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/7428
* [Web] Add show/hide password toggle on login pages by @FrauJulian in https://github.com/mailcow/mailcow-dockerized/pull/7342

### Fixes
* Fix #7150: passwd-verify.lua wipes auth cache during any nginx outage by @wryfi in https://github.com/mailcow/mailcow-dockerized/pull/7290
* [Web] use absolute RHS names in generated DNS zonefile by @smpaz7467 in https://github.com/mailcow/mailcow-dockerized/pull/7347
* [Web] redirect deep links to the matching login page by @smpaz7467 in https://github.com/mailcow/mailcow-dockerized/pull/7349
* [Web] show external sender addresses regardless of authsource by @smpaz7467 in https://github.com/mailcow/mailcow-dockerized/pull/7376
* [Web] translate password errors in the forced password change modal by @smpaz7467 in https://github.com/mailcow/mailcow-dockerized/pull/7344

### Updates
* [Unbound] Update to 1.26.1 by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/7473
* [SOGo] Update to 5.12.11 by @FreddleSpl0it in https://github.com/mailcow/mailcow-dockerized/pull/7475
* Update redis Docker tag to v7.4.11 by @renovate[bot] in https://github.com/mailcow/mailcow-dockerized/pull/7432
* postfix-tlspol: upgrade to trixie + 1.11.0 update by @DerLinkman in https://github.com/mailcow/mailcow-dockerized/pull/7334
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/7431
* [Postfix] update postscreen_access.cidr by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/7450
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/7457
* Translations update from Weblate by @milkmaker in https://github.com/mailcow/mailcow-dockerized/pull/7460

## New Contributors
* @wryfi made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/7290
* @FrauJulian made their first contribution in https://github.com/mailcow/mailcow-dockerized/pull/7342

**Full Changelog**: https://github.com/mailcow/mailcow-dockerized/compare/2026-07b...2026-09

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