Marc Sherman wrote: > Martijn Grendelman wrote:
>> What about using :fail: in a router? We do it to block spam for certain
>> users while letting it through for others.
>
> That leads to collateral spamming, and will eventually get you
> blacklisted yourselves.
I am sorry, but I am not sure I understand that. Are you talking about
bounces that go to faked senders?
