[Mailman-Users] per-user subject prefix

[Kenneth Porter]

Is there a way to enable/disable subject prefix (like the "[mailman-users]" 
on this list) on a per-user basis? I like NOT having the prefix, as it 
reduces the available space for content in the subject. But I get users 
using web-based mail readers and those who can't use their client's filters 
who want the decoration. What's an admin to do?

I'm using 2.1.5 on Fedora Core 2.

...

Just found in the FAQ something to enable message personalization:

<http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq03.015.htp>

Will this do what I need? (Yeah, I'll try it, but might as well get the 
answer into the archives for the next guy.)