VeriSign SMTP reject server updated
Stephen J. Wilcox
steve at telecomplete.co.uk
Sun Sep 21 10:08:27 UTC 2003
On Sat, 20 Sep 2003, Eric A. Hall wrote:
> on 9/20/2003 1:01 PM Matt Larson wrote:
>
> > We are interested in feedback on the best way within the SMTP protocol
> > to definitively reject mail at these servers.
>
> You need to:
>
> 1) fatally reject mail for domains that are not delegated with 5xx
>
> -and-
>
> 2) softly reject mail for domains that are delegated with 4xx so
> the messages are requeed and may get to an authorized server on
> the next run
>
> Used to be able to use DNS for this.
I had a thought, its a hack but..
What if you change the behaviour of the GTLD named daemons to return an NXDOMAIN
response to any MX queries on non-existent domains, you will then take this
whole debate on SMTP out of the equation ...
Steve
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