This is pointless argument, please stop There are those who think they are right in spamming people with reports of a virus they didn't send and the rest of the planet who think they are mad and wish they'd get a clue.

As the recipient of the DSN is _always_ the best judge whether the DSN was sent to a forged return-path, why not take advantage of that superior knowledge?

because that superior knowledge has already thrown them all away without looking any slight chance of one being valid is wasted If the AV systems that know they are dealing with forged senders, which they do, just dropped them then the volume of potentially valid ones may be low enough that we wouldn't just bin them all If you make it hard we will ignore it. brandon