Shane Bywater wrote:
> Hi,
>       I'm wondering what the best way is (hopefully by using Spamdyke)  to 
> deal with the thousands of mailer-daemon messages that are sometimes 
> received by a user who was unfortunate to have a spammer use their email 
> address in the From: line to send out SPAM.  Of course any undeliverable 
> messages are returned to this innocent user.
>       The solution would need to be domain specific as there are multiple 
> domains are using Spamdyke on the mail server in question.
> 
> Thanks for your assistance,
> Shane Bywater
> 

"Backscatter" can still be a bit of a problem. (google backscatter)

Have you configured an SPF (DNS TXT) record for the domain(s) in question?
This would eliminate some of it provided that the receiving mail server
checks SPF (a lot of them still don't).

-- 
-Eric 'shubes'
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