On Wed, 13 Aug 2014 16:43:29 +0200 Antony Stone <antony.st...@spamassassin.open.source.it> wrote:
> - spammers who get unsubscribe responses will use that to confirm > the address and send more, therefore unsubscribing to them is a bad > idea I wonder how often this happens. This implies that spammers actually care about the quality of their lists, which I don't think is true. It's so cheap to use a botnet to blast out spam that I bet most spammers keep using addresses forever and don't bother trying to validate them. > Therefore users should be encouraged to unsubscribe from things they > really did subscribe to, but otherwise MTA rejection of what looks > like spam should reduce the quantity of both spam mass-mailings and > genuine newletters etc. That's true, but a lot of users (I've done it myself) forget that they've subscribed to something, especially if it's really low-volume. Regards, David.