[122719] in North American Network Operators' Group
Re: Spamhaus...
daemon@ATHENA.MIT.EDU (William Herrin)
Sat Feb 20 11:37:46 2010
In-Reply-To: <20100220130823.GA5232@gsp.org>
From: William Herrin <bill@herrin.us>
Date: Sat, 20 Feb 2010 11:36:37 -0500
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sat, Feb 20, 2010 at 8:08 AM, Rich Kulawiec <rsk@gsp.org> wrote:
> On Fri, Feb 19, 2010 at 08:20:36PM -0500, William Herrin wrote:
>> Whine all you want about backscatter but until you propose a
>> comprehensive solution that's still reasonably compatible with RFC
>> 2821's section 3.7 you're just talking trash.
>
> We're well past that. =A0Every minimally-competent postmaster on this
> planet knows that clause became operationally obsolete years
> ago [1], and has configured their mail systems to always reject,
> never bounce. [2]
Rich,
Indeed, and the ones who are more than minimally competent have
considered the protocol as a whole and come to understand that at a
technical level the "reject don't bounce" theory has more holes in it
than you can shake a stick at. Find me a comprehensive solution and
I'll help you write the I-D but mere trash-talk about the people who
respect SMTP's architecture is unhelpful.
On Sat, Feb 20, 2010 at 10:06 AM, <Valdis.Kletnieks@vt.edu> wrote:
> 5321 Simple Mail Transfer Protocol. J. Klensin. October 2008. (Format:
> TXT=3D225929 bytes) (Obsoletes RFC2821) (Updates RFC1123) (Status:
> DRAFT STANDARD)
>
> It's been done already. It's been quoted in this thread even.
> There's no sense in Rick re-inventing the wheel when
> John Klensin and friends already
> fixed the flat and rebalanced it a year and a half ago.
They didn't exactly fix it. What they did is reinforce the importance
of generating a bounce message by keeping the existing "must" language
from 2821 but adding:
"A server MAY attempt to verify the return path before using its
address for delivery notifications"
Regards,
Bill Herrin
--=20
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
