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Re: Which Spam Block List to use for a network?

On Wed, Jun 23, 2004 at 10:05:50AM +0200, Andrew Miehs wrote:
> >On Wed, Jun 23, 2004 at 08:32:17AM +0200, Adrian 'Dagurashibanipal' 
> >von Bidder wrote:
> >
> >Well, if a host blocks mail from me, mail from that host is in fact
> >unanswerable mail. It is just a subset of mail which can't be answered.
> >
> I think the important part here is not the host, but the domain. If the 
> domain does not exist or does not have any MX records, fair enough, but 
> just because a host doesn't want to receive mail, thats another 
> story...

Well yes. Maybe I oversimplified. What I do is a callback to the MX of
the envelope sender to see if it accepts mail to him/her. If not, the
mail is rejected with an explicative 550.


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