[resend: not sure why this didn't make it through, yesterday; re-sending; sorry if it's a dupe -S]
Nuno Lopes wrote: > Well we have already tried a couple of methods but none of them worked > so far, including DNS blacklists, spamassassin and a simple words > blacklisting. > I've run out of ideas. Training spamassassin would probably work, but > I'm not sure if it wouldn't cause disturbs in the mail server. Did we drop the double opt-in idea? - User submits a note (with valid email address) - We send mail with a token URL - User clicks URL - Note is approved and posted Max 5 notes per address per day. Or x notes per domain/IP per day.. Yes, the evil side COULD be automated, but it's a lot more difficult than a simple post. S
