David MacQuigg <dmq(_at_)gain(_dot_)com> writes:
A Spam Bounce is a message generated in response to a spam, or what is
suspected of being spam. This could be a reject message, or a challenge
message, or a bounce generated by the recipient of the spam. In the
past, these have been a problem, because they generally go to a forged
address, where they become just more spam.
That sure sounds like a Delivery Status Notification to me. I don't see
why it should be treated differently from any other DSN.
Russ Allbery (rra(_at_)stanford(_dot_)edu)