On Mon, 2006-03-13 at 14:26 +0100, Patrick wrote: > I'm not experienced in list admin stuff at all but could this > potentially work? A script that disables mail delivery to all list > subscribers except subscriber <n> and send out an email to the list. > Wait for the uol.com.br response. If it isn't received, disable mail > delivery for subscriber <n>, enable mail delivery for subscriber <n+1> > and send out the message again. Rinse and repeat until success. A simple, but only mildly effective, method is to periodically mail each subscriber, asking them to respond to keep their subscription alive. Those that don't respond appropriately (not at all, or with an auto responder) would get delisted. However, if you have an active and deliberate spammer in our midst, which seems likely, they'll just resubscribe. This is where news groups are better. You don't need to supply an e-mail address that'll send spam in your direction. It works close enough to e-mail that most people can figure it out. It can be used on- and off-line (unlike web forums). > Alternatively the powers that be could stick uol.com.br in every RBL > on the planet and see if that gets their attention :) My ISP, Optus, one of the major backbones in Australia, has been blacklisted for several years (for doing SFA to fix spammers in their midst), but it hasn't stopped them. What it's done it make it impossible for some Optus customers to send mail via SMTP. Many of the internettly clueless use Hotmail, etc., and don't encounter that block. -- Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.