Redirect all dsn to single address?

[Mark Martinec]

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