What has been decided: Do I just drop eMail from whomever that has the wrong reciepent, or do I bounce it ( nouser: No user here by that name )? In my limited view of things I see that either could have benefits:
Bounce -> the folks that are real and not spammers know that they screwed up the address.
Drop -> the spammers think that the address works, so the spam lists grow with invalid names.
I suggest bounce (in the action_bounce, reject at SMTP time sense). The potentially large consequence of losing a legitimate message outweighs the likely small benefit of polluting the spammers' lists.
I say it's a small benefit because:
- If you're dropping the message, you still need to waste the bandwidth to make them think you've accepted it.
- Unless you're tarpitting it, it won't slow them down much.
- Many spammers don't clean up their lists anyway. Heck, many legit mailing lists don't either. We get lots of mail sent to long-dead accounts, some of which I ended up reactivating, watching for (and unsubscribing from) legit newsletters, and turning into spamtraps.
Kelson Vibber
SpeedGate Communications <www.speed.net>
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