From: Noel Jones on
On 5/14/2010 11:09 AM, motty.cruz wrote:
> Hello All,
>
> A client in my domain let’s say domain.com is receiving lots of bounce
> mails “backscatter” or “joe job” can I block all bounced mail to that
> specific user user(a)domain.com?


Read this:
http://www.postfix.org/RESTRICTION_CLASS_README.html

Then create a restriction class that looks for sender <> and
recipient joe.

-- Noel Jones