🛷 🐄 Moocember 2023 Update | Netfilter NFTables Support and Banlist Endpoint

2023-12a (Release 29th December 2023)


2023-12 (Release 19th December 2023)

Moo hoo everyone!

We have some new Netfilter features for you before the holidays. In addition, the watchdog can now send notifications via webhooks. To do this, simply configure the variables WATCHDOG_NOTIFY_WEBHOOK and WATCHDOG_NOTIFY_WEBHOOK_BODY in mailcow.conf accordingly.


  • Update actions/stale action to v9 by @renovate in #5579
  • Translations update from Weblate by @milkmaker in #5583
  • [Netfilter] add nftables support by @FreddleSpl0it thanks to @amorfo77 in #5585
  • [Web] add f2b_banlist endpoint by @FreddleSpl0it in #5313
  • Watchdog: Allow sending notifications via webhooks by @felixoi in #4968
  • Allow suppressing watchdog start notification by @smarsching in #5453
  • Translations update from Weblate by @milkmaker in #5590
  • Update dependency nextcloud/server to v28 by @renovate in #5589
  • Translations update from Weblate by @milkmaker in #5591
  • Translations update from Weblate by @milkmaker in #5598
  • Guideline Improvement + Issue Template adjusting by @DerLinkman in #5602
  • chore(deps): update alpine docker tag to v3.19 by @renovate in #5603

How to use the Banlist Endpoint is described here https://docs.mailcow.email/manual-guides/mailcow-UI/u_e-mailcow_ui-netfilter/#provide-netfilter-decisions-via-url-as-source-for-firewall-block-rules.

The complete changelog, including individual commits, is available on GitHub for those interested: https://github.com/mailcow/mailcow-dockerized/releases/tag/2023-12

Once again, a huge thank you to our amazing mailcow community for your ongoing support and valuable feedback.

Stay healthy.

Your mailcow team