docker-mailserver/docs/content/advanced/override-defaults/dovecot.md

The Dovecot default configuration can easily be overridden providing a config/dovecot.cf file. This file can also be used to specify additional configurations. Dovecot documentation remains the best place to find configuration options.

Debugging

To debug your dovecot configuration you can use this command:

./setup.sh debug login doveconf | grep <some-keyword>

setup.sh is included in the docker-mailserver repository.

or

docker exec -ti <your-container-name> doveconf | grep <some-keyword>

The config/dovecot.cf is copied to /etc/dovecot/local.conf. To check this file run:

docker exec -ti <your-container-name> cat /etc/dovecot/local.conf