aspettl/docker-mailserver-configreload repository overview

GitHub address of mailadmin project: https://github.com/aspettl/mailadmin⁠

⁠docker-mailserver integration

This is a simple way to export mailadmin data and build required config files for https://github.com/docker-mailserver/docker-mailserver⁠.

⁠Concept

This container should be running on the same host as docker-mailserver - for mailadmin this is (intentionally) not required. Besides docker-mailserver, there should also be some webserver running and its log file needs to be mounted into this container.

The approach is simple: there is some magic webhook token and we check the existing webserver log file for its presence. When the token is found, the docker-mailserver config (postfix-accounts.cf and postfix-virtual.cf) is regenerated. On startup, the config is always (re)generated. Note that docker-mailserver will automatically reload when the files are changed.

Tip: It is recommended to have a cron job regularly triggering the webhook, e.g. every hour. This is helpful as it is easy to forget to hit "Reload configuration" in mailadmin.

⁠Configuration requirements in docker-mailserver

The postfix-aliases.cf file needs a line devnull: /dev/null. This file is only auto-generated if it does not exist yet.