Subject Tags - Validate Subject Lines
You can limit messages to your list, based upon the start of the Subject Line. If your mailing list needs more structure, consider using subject tags.
Subject tags are one-word categories added to the front of a subject line, and can be customized to your own list needs.
Any mailing list might use tags such as ADMIN for list
administration emails and MISC for general or off-topic emails. A
mailing list on controlling clutter might use tags such as TIP for
helpful hints, TASK when inviting others to participate in a cleanup
challenge, and SUCCESS for announcing what they've accomplished.
Using these can also prevent spam messages sent by a
subscriber's hijacked machine from reaching your membership.
Subject tags require the subject line of an incoming message to meet certain requirements before being sent on to the subscribers.
You can have some subject tags that only the list moderators can use.
You can restrict some subject tags, so that Replies are not allowed.
Emails not including current subject tags will be sent back to the sender
With a note that the post didn't go through and a list of
current subject tags, to help the sender figure out what their subject
line should be.
Locate option in the Posting Messages to List section
Turn Validate Subject Lines option on
Add rules by clicking on Validate Subject Line Rules
The first column is the word that must appear at the start of the Subject Line
The second column controls whether Replies are allowed for that Subject Tag
The third column controls whether subscribers can use that Subject Tag
ADMIN: No Yes
MISC: No No
TIP: Yes No
TASK: Yes No
SUCCESS: Yes No
So only the list moderators can send email with the word Admin at the beginning of the Subject Line.
Everybody can send messages with the other Subject Tags.
MISC can not have Replies, but TIP, TASK and SUCCESS can have replies.