Hello, I am running an experiment with Postgrey to delay (for 300 seconds minimum) incoming emails. If the clients don't retry after this delay, then the messages don't usually get in.
The "postgrey" in question is the very same thing that exists for the Postfix MTA with various automatic whitelistings of repeatedly successfull senders, etc. I do already see spammers smart enough to retry addresses from the zombie machine, but that share is now below 10% of all emails. My prediction for next 200 days is that most spammers get the clue, but it gives us perhaps 3 months of less leaked junk. /Matti Aarnio -- one of <postmaster at vger.kernel.org> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/