[62652] in North American Network Operators' Group
Re: VeriSign SMTP reject server updated
daemon@ATHENA.MIT.EDU (Eric A. Hall)
Sat Sep 20 16:11:19 2003
Date: Sat, 20 Sep 2003 15:06:51 -0500
From: "Eric A. Hall" <ehall@ehsco.com>
To: Matt Larson <mlarson@verisign.com>
Cc: nanog@nanog.org
In-Reply-To: <20030920180139.GA21405@chinook.rgy.netsol.com>
Errors-To: owner-nanog-outgoing@merit.edu
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.
--
Eric A. Hall http://www.ehsco.com/
Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
