The mailing list for listmasters using Sympa

[Liam Kirsher <address@concealed>]

Hi --

I get quite a lot of spam at some of my sympa list addresses.  Sympa 
generates a bounce, but since most of the From addresses are forged, that 
is creating a lot of backscatter.

What's the best way to deal with this?

1. Is there some way to configure Sympa to silently trash messages that are 
from people who are not subscribed to a list?

2. Alternatively, I notice that my spam scanner, Amavisd-new (+ 
SpamAssassin, with Postfix) has the capability of doing SQL searches.   I'm 
wondering if I can't configure it somehow to check the sender against the 
Sympa list of users, and if no match is found, just drop the message.  That 
would stop the backscatter and relieve Sympa of having to process all those 
bogus messages.  Has anyone done something like this?


Thanks,
Liam



Liam Kirsher <liamk/AT/numenet/DOT/com>
415-456-4420
415-438-0384 (cell)
PGP: http://liam.numenet.com/pgp/