Marc Perkel wrote:
What they should do is return different codes to indicate what got them on the list. SAV is not backscatter. So if it is from <> and there is DATA then it's someone who is sending bad bounce messages to faked sender addresses. But if there is nod DATA then it's SAV. These should be processed separately.
Errr, if it's an invalid email address it will never get to the DATA stage, at least on my servers, it's out right rejected with a 553 - Invalid user.
How do you tell the difference between SAV and bounce backs in that case ? Rick
