[77767] in North American Network Operators' Group
Re: Time to check the rate limits on your mail servers
daemon@ATHENA.MIT.EDU (Todd Vierling)
Fri Feb 4 09:55:11 2005
Date: Fri, 4 Feb 2005 09:53:07 -0500 (EST)
From: Todd Vierling <tv@duh.org>
To: "Edward B. Dreger" <eddy+public+spam@noc.everquick.net>
Cc: Joel Jaeggli <joelja@darkwing.uoregon.edu>,
Adi Linden <adil@adis.on.ca>, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.44.0502032350030.15669-100000@a.mx.ict1.everquick.net>
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 3 Feb 2005, Edward B. Dreger wrote:
> JJ> auth is sufficient to make email traceable to your own customers.
>
> End users also would appreciate the ability to _know_ a message is not
> forged.
The only way to be sure is via cryptographic signature. Barring that level
of immediate traceability, SPF provides a very useful data point to that
end (as its *only* purpose is curbing forgery).
--
-- Todd Vierling <tv@duh.org> <tv@pobox.com>
