The mailing list for listmasters using Sympa

[Chris Hastie <address@concealed>]

Can a message be rejected silently, without advising the sender of the 
fact?

I wouldn't normally want to do this, but I'm trying to harden a Sympa 
installation against loops, having once had an MLM enter into a "I can 
send more than you can" argument with a badly configured out-of-office 
auto reply.

My first attempt involved adding this to the scenari:

match ([header->precedence], /list|bulk/)      smtp,smime,md5    -> reject

since some auto responders set the precedence header. This resulted in a 
short rejection note being returned - can I suppress this?
--
Chris Hastie