Dave Crocker <dhc2@xxxxxxxxxxxx> wrote: > >>> If we can communicate the fact that a message is discarded because it >>> was categorized as spam back to the sender without adverse side > [ effects, then occasional false positives aren't much of a problem.] > > unfortunately, that act of communication _is_ the adverse side > effect. it tells the spammer that yours is an active, responsive > email account. I must disagree. Iljitsch stated it precisely and well: "the fact that a message is discarded as spam" need not give any information about whether the recipient is an active email account -- least of all "responsive". -- John Leslie <john@xxxxxxx>