"uns*bscribe" not working on my lists

So I've got a few lists that are, as far as I can tell, identical as  
far as config and file permissions go. But on one of them,  
unsubscribe requests work, and on the others, it always says "I could  
not find your name on the list", even though I see it right there on  
the last line of the dist file.  I can't tell what's different about  
the two lists that makes one work and one fail.

So, my question *really* is, how do I debug this?  I imagine  
something is going wrong inside "multigram", but I can't even figure  
out how multigram should be invoked in order to reproduce what  
happens when mail comes in.  I only barely understand what multigram  
is supposed to do, and its source code in insanely opaque... Is there  
even a man page for this thing?

--
Jamie Zawinski       [email protected]                  http://www.jwz.org/
                     [email protected]      http://www.dnalounge.com/
                                          http://jwz.livejournal.com/