Please note, Plesk has supported the version of Mailman provided by OS vendor by default.
The Mailman 3 is shipped by default on Ubuntu 18 and Debian 10.
Please keep voting if this request is still actual for you.
Thank you for your input! We will consider this functionality in upcoming releases, if it will be popular.
Everyone, please continue voting for this feature if you consider it important.
An error occurred while saving the commentAnonymous commented
I know a few of our resellers would like this capability so they can have a template with their own SPF and NS records per-configured in the zone.