Mailman3 LDAP Sync

Synchronizing mailman3 list against ldap with ease. has been tested for OpenLDAP .

Features:

• dockerized version
• Search through DN if group member is a DN record (Active Directory)
• Adding some prefix in list name
• Hooks, module that will be executed in the end of script
• add lists and members from LDAP
• use attribute 'mail' for list address and CN for list name if 'mail' is set, else use list name + default domain name
• delete lists that don't exist in LDAP
• Excluding list for being deleted by regex pattern

Installing

• Clone repository

git clone 

• edit .env, config.ini, docker-compose.yml
• start

Logrotate

If you are enabling script log file and run script scheduled (using crontab) then you may set log rotation for not make it's bigger time by time.

/etc/logrotate.d/mailman3_ldapsync

/var/log/mailman3_ldapsync.log {
    daily
    missingok
    notifempty
    create 0644 1000 1000
    compress
}

Using the Script

docker compose run --rm mm3_sync python m3_sync.py /etc/mm3sync.ini

before first start

sudo touch /data/freie-dorfschule/mm3sync/log/mailman3_ldapsync.log && sudo chown -R 1000:1000 /data/freie-dorfschule/mm3sync/log/mailman3_ldapsync.log

settings

The additional settings listed below will only be applied or overwritten on list creation.

DMARC

To send mails to certain providers, you need to munge/masquerade for certain domains. See docker-compose.yml and https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/handlers/docs/dmarc-mitigations.html

Develop

if you set DEBUG_DEVELOP=true, the pdb debugger is started.