[Mailman-Users] Separate Subscribe/Unsubscribe addresses

[Ed Greenberg]

Mailman creates a -request address for each list, to which you send 
subscribe and unsubscribe messages (and others).

Some other mailing list systems offer separate addresses for subscribe and 
unsubscribe functions, as well as a request address.  It's easier for the 
beginner to deal with such addresses, especially when the list is moving 
from such a system to a mailman hosted system.

Has anybody implemented this in Mailman?