Re: sender_host_reject_bydns

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Author: Stuart Lynne
Date:  
To: Piete Brooks
CC: Philip Hazel, exim-users
Subject: Re: sender_host_reject_bydns
On Dec 18, Piete.Brooks@??? (Piete Brooks) wrote:

> Is the concern of allowing explicit lookup "Am I blocked",


Being able to tell if they are blocked might help them. But not
a lot. Unless you think they might try a script like:

    repeat
        if return_address blocked
           return_address = next available fake address


        send some more spam from return_address


    until done


    

> or is it SPAMmers doing a Zone Xfer ? The latter can be blocked.


-- 
Stuart Lynne <sl@???>      604-933-1000      <http://www.poste.com>
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