Details specific to the Mailman available for those using Dreamhost ISP. As of this writing (20220315), it is version 2.1.23.
You can set Mailman to allow use of Topics.
Setting up topics:
Using Topics.
Each user can change this in their membership settings. The Admin can also set these for any user (membership management, click on user email). Scroll down and set:
Examples. Assume a topic is configured as “ONE”. This means for examples, that a message with the subject “This is one message” will be considered in that topic and a message with subject “This is message two” will not be in the ONE topic.
user has defaults (no topics, and No for unmatching messages) | user gets all messages sent to the list |
user selects topic “ONE” and says Yes for unmatching messages | user gets all messages sent to the list |
user selects topic “ONE” and says No for unmatching messages | user will only get messages in topic ONE |