Mitch (WebCob) <[EMAIL PROTECTED]> wrote: > has anyone seen an open source equivalent of this system: > > All messages from unknown senders are bounced. The bounce contains a > link to a robot-unfriendly "prove you are a human with a real email > address page" that consists of one of those "enter the letters you see > in this picture" forms. Doing that validates the sender as a real > person, not a spammer, and eliminates the need to run something like > spamassassin. > > A database is kept of all valid senders, and whitelists (discussion > lists, etc.) to make this a one time requirement per recipient (or > optionally per recipient domain, per server etc.)
Do you know TMDA[1]? AFAIK, it doesn't use "please read the image"-like tests for verifying whether there's a human being behind an e-mail address, but that kind of test wouldn't be very nice to blind (or otherwise visually impaired) people anyway who have to use special reading hardware. [1] http://www.tmda.net ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
