We are running the Sympa mailing list manager - yay!
There are some issues to be fixed or reconfigured though.
Default configuration changes
Some default list configuration items should be changed:
- Visibility of the lists (visibility): should be set to 'noconceal'
- Reply address (reply_to_header): should be set to 'sender'
DKIM and DMARC breakage
Not sure what causes this, but sending a message from a yahoo.com account to the list causes it to fail DKIM/DMARC for (at least) Google receipients