Yahoo DMARC breakage

Thu Apr 10 00:12:23 UTC 2014

On 4/9/2014 7:02 PM, Jeff Kell wrote:
> On 4/9/2014 7:22 PM, Larry Sheldon wrote:
>> On 4/9/2014 5:11 PM, bmanning at vacation.karoshi.com wrote:
>>> On Wed, Apr 09, 2014 at 05:49:27PM -0400, Jeff Kell wrote:
>>>>
>>>> The most "sane" out-of-mind response should only be sent *if* the
>>>> out-of-mind person is named explicitly as a recipient in the RFC822
>>>> header.  Anything To: somelist at somehost does not qualify :)
>>>>
>>>> Jeff
>>>
>>>      and just how is an algorithm supposed to detect that
>>>      <jeff-kell at utc.edu> is a single human and not a list?
>>
>> It is really too bad that there is not place to put a "precedence"
>> that the software could key on--with values like "bulk" or "junk" or
>> "list".
>
> Headers of your message include:
>
>> Precedence: list

[snip]

I knew that.

> Proper mail clients can provide "list links" based on the List- headers,
> but few if any actually do.
>
> So take your pick, but my point remains, it still retains:
>
>> Date: Wed, 9 Apr 2014 18:22:51 -0500
>> From: Larry Sheldon <LarrySheldon at cox.net>
>> Organization: Maybe tomorrow
>> User-Agent: Mozilla/5.0 (Windows NT 5.1;
>>   rv:24.0) Gecko/20100101 Thunderbird/24.4.0
>> To: <nanog at nanog.org>
>> Subject: Re: Yahoo DMARC breakage
>
> And I'm nowhere mentioned.  I only appear in the "envelope RCPT TO:<>
> RFC821 header", nowhere in the RFC822 header.
>
> It's not rocket science if you have headers available (which even
> Outlook can see, although you have to jump through a few hoops to see them).

My point is, and was only that the ID10t's robot-responder needs only 
two rules (one of which is sortakinda off topic in a muchmorphed OT 
threadlet) are:  If the Precedence is "list", "junk", or "bulk" DO 
NOTHING, else, if the address to which the proposed babblegram is to be 
sent has received a babblegram from us since the controlling file was 
created DO NOTHING, else, BABBLEON.

-- 
Requiescas in pace o email           Two identifying characteristics
                                         of System Administrators:
Ex turpi causa non oritur actio      Infallibility, and the ability to
                                         learn from their mistakes.
                                           (Adapted from Stephen Pinker)