[Mailman-Users] Content filtering

[Rob]

Is there any way of having mailman scan message content (not headers)  
and holding a message for review if there is a match in the body of  
the message? We have multiple lists, some of which are specifically  
set up to discuss a particular subject, and users frequently post to  
the wrong list, leading to much confusion and occasional flame-wars. I  
would love to be able to hold those messages and contact the authors  
directly or resend it to the correct list.

Thanks,

-Rob