How about the only messages from list members can be posted. Put some kind of filter on the reciever and just pitch those that are not from members of the list. Bill -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Russell McMahon Sent: Monday, June 01, 1998 10:51 AM To: PICLIST@MITVMA.MIT.EDU Subject: PIC List Anti-Spam suggestion Just a thought which would keep out any spam I have seen here so far. What if the list was filtered so that ONLY entries with "PIC" somewhere in the title (or even in the contents were redistributed (in the contents this would probably have to filter on "PIC" as an isolated word to avoid eg topic, picture, epicure (haven't seen too many of them in spam), etpic ...). This would be a little hard on the uninitiated but an occasional message re etiquette (plus of course appropriate instructions in the file you receive when you join) would largely (:-)) cater for this. Even (OT) entries would need this addition. IF a spammer took the time to read the information on the list this mechanism would be easily overcome - I suspect the vast majority are much too keen on getting rich quick(ly) and annoying as many people as possible to actually look at the areas they send their junk to.