Lars,
We're getting a lot of backscatter DSNs and users are complaining. Is it possible to rederict all incoming DSNs to a single mailbox that I can check from time to time?
You can probably achieve that with MTA settings: redirect based on a null return path address. But I don't think it would be particularly useful. I believe the best defense against backscatter is offered by a bounce killer, built into amavisd. For it to work, one needs to have SQL logging enabled (a.k.a. pen pals), then rise a score for detected third party bounes, e.g.: $bounce_killer_score = 100; Mark
