Release 2025-09b is here. This update fixes startup issues with the NGINX container when IPv6 is disabled.

GitHub

Release 🍂🐄 Mootember Update 2025 - Revision B · mailcow/mailcow-dockerized

What's Changed scripts: ipv6_controller improvement + fix modules handling by @DerLinkman in #6722 [SOGo] Drop deprecated sogo_update_password sq...

Update 2025-09 is here:

GitHub

Release 🍂🐄 Mootember Update 2025 | MTA-STS Support, SOGo 5.12.3, Rspamd 3.12.1, and More · mailcow/mailcow-dockerized

Cautionmailcow now requires jq to be installed on the host system in order to operate with the redesigned IPv6 controller. If it's missing, please ...

Please read the changelog carefully before upgrading!

Starting with Update 2025-08: Configure MTA-STS directly in the mailcow UI. The required DNS records will be shown in the DNS checker tool too. #mailcow #teaser

Today we happy to confirm that mailcow is completely usable with Debian 13 🎉🎉 However, during upgrade you may stumble accross some pitfall: Exim. For this, we wrote a guide:

mailcow: dockerized - Blog

Quick Guide: Upgrading Debian 12 to Debian 13 for mailcow Servers

Moohoo, dear community! With the release of Debian 13 (Trixie), the question arises for you as administrators: How can you perform a smooth dist-up...

You want to host mailcow on your own but do not know how? And you want to see the whole installation process prior before getting started? Then checkout the video from our community member Webnestify: Many thanks for the video! Highly recommended.