Re: DMARC and yahoo
Hector Santos <hsantos@isdg.net> Sun, 20 April 2014 22:21 UTC
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Message-ID: <5354483E.2080806@isdg.net>
Date: Sun, 20 Apr 2014 18:20:46 -0400
From: Hector Santos <hsantos@isdg.net>
Organization: Santronics Software, Inc.
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To: Doug Barton <dougb@dougbarton.us>, ietf@ietf.org
Subject: Re: DMARC and yahoo
References: <CAKW6Ri6OUmxGaBOGR2hoWpDOGWsVQ9tQ2Q9ogkT5wzFhFJLBbQ@mail.gmail.com> <534D9C2C.8010606@gmail.com> <20140415214348.GL4456@thunk.org> <1397607352.389753533@f361.i.mail.ru> <534DCFFB.4080102@gmail.com> <20140416012205.GC12078@thunk.org> <24986.1397615002@sandelman.ca> <20140416023813.GA21807@thunk.org> <C8A2B0B4-5FA4-4BFE-AECE-C61667ECF2FB@secure-endpoints.com> <4948F093F369F051CAF0B810@[192.168.1.128]> <53543ADA.8010204@dougbarton.us>
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On 4/20/2014 5:23 PM, Doug Barton wrote: > The issue with @yahoo.com and DMARC is not the @yahoo.com users' > ability to receive mail, it's their ability to send mail to the list > with From: *@yahoo.com and have it be received by list subscribers who > implement strict DMARC policies which honor Yahoo!'s p=reject. Or basically, anyone with a p=reject policy will be rejected by DMARC compliant receivers if its not signed by the author domain. We have been calling this 3rd party signatures. See RFC5016 (Requirements for a DKIM Signing Practices Protocol) for the definition: http://tools.ietf.org/html/rfc5016#page-3 o First Party Address: for DKIM, a first party address is defined to be the [RFC2822].From address in the message header; a first party address is also known as an Author address. o First Party Signature: a first party signature is a valid signature where the signing identity (the d= tag or the more specific identity i= tag) matches the first party address. "Matches" in this context is defined in [RFC4871]. o Third Party Signature: a third party signature is a valid signature that does not qualify as a first party signature. Note that a DKIM third party signature is not required to correspond to a header field address such as the contents of Sender or List-Id, etc. DMARC has no such separation support. Thats the problem. You know, for the IETF purist, this is an violation of RFC5016 if it uses the term DKIM in its documentation as a conforming solution. Either that, or it fell thru the crack. Lets hope its the latter and we can fix this problem. > It's not clear how setting the @yahoo.com users to digest mode helps > this situation at all. For our MLS digest mode, the signed digest message is 5322.From the list domain. Can't tell you off hand how other MLS will do this. -- HLS
- DMARC from the perspective of the listadmin of a … Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Re: DMARC from the perspective of the listadmin o… Michael Richardson
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: DMARC from the perspective of the listadmin o… Brian E Carpenter
- Re: DMARC from the perspective of the listadmin o… Theodore Ts'o
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Mark Andrews
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: DMARC from the perspective of the listadmin o… Douglas Otis
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Re: DMARC from the perspective of the listadmin o… Andrew G. Malis
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… John Levine
- Re: DMARC from the perspective of the listadmin o… Brian E Carpenter
- Re: DMARC from the perspective of the listadmin o… Brian E Carpenter
- Re: DMARC from the perspective of the listadmin o… Theodore Ts'o
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Dick Franks
- Re: DMARC from the perspective of the listadmin o… Dick Franks
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re[2]: DMARC and yahoo mohammed serrhini
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: DMARC from the perspective of the listadmin o… Dick Franks
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Re: DMARC and yahoo Doug Royer
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… Warren Kumari
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- RE: DMARC from the perspective of the listadmin o… MH Michael Hammer (5304)
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC and yahoo Theodore Ts'o
- Re: DMARC from the perspective of the listadmin o… Dick Franks
- Re: DMARC from the perspective of the listadmin o… Brian E Carpenter
- Re: DMARC from the perspective of the listadmin o… Rolf E. Sonneveld
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Dave Cridland
- Re: DMARC from the perspective of the listadmin o… Dick Franks
- What I've been wondering about the DMARC problem Brian E Carpenter
- Re: What I've been wondering about the DMARC prob… Doug Barton
- Re: DMARC and yahoo Doug Royer
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Ted Lemon
- Re: What I've been wondering about the DMARC prob… Theodore Ts'o
- Re: DMARC from the perspective of the listadmin o… Scott Kitterman
- Re: DMARC and yahoo Theodore Ts'o
- What I've been wondering about the DMARC problem Abdussalam Baryun
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Sabahattin Gucukoglu
- Re: What I've been wondering about the DMARC prob… Seth Johnson
- Re: What I've been wondering about the DMARC prob… Seth Johnson
- RE: What I've been wondering about the DMARC prob… l.wood
- Re: DMARC and yahoo Douglas Otis
- Re: What I've been wondering about the DMARC prob… Seth Johnson
- Re: What I've been wondering about the DMARC prob… Dave Crocker
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: What I've been wondering about the DMARC prob… Seth Johnson
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: What I've been wondering about the DMARC prob… Paul Ferguson
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: What I've been wondering about the DMARC prob… Hector Santos
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- RE: What I've been wondering about the DMARC prob… MH Michael Hammer (5304)
- Re: What I've been wondering about the DMARC prob… Hector Santos
- RE: What I've been wondering about the DMARC prob… MH Michael Hammer (5304)
- Re: What I've been wondering about the DMARC prob… Brian E Carpenter
- Re: DMARC and yahoo Doug Royer
- Re: DMARC and yahoo Theodore Ts'o
- Re: DMARC and yahoo Michael Richardson
- Re: DMARC and yahoo Theodore Ts'o
- Re: What I've been wondering about the DMARC prob… Sabahattin Gucukoglu
- Re: DMARC and yahoo Stephen Farrell
- Re: DMARC and yahoo Hector Santos
- Re: DMARC and yahoo Randy Bush
- Re: DMARC and yahoo Yoav Nir
- RE: DMARC and yahoo MH Michael Hammer (5304)
- Re: DMARC and yahoo Theodore Ts'o
- RE: DMARC and yahoo MH Michael Hammer (5304)
- Re: What I've been wondering about the DMARC prob… Jim Fenton
- Re: What I've been wondering about the DMARC prob… Brian E Carpenter
- Re: DMARC and yahoo Miles Fidelman
- RE: DMARC and yahoo l.wood
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Douglas Otis
- Re: DMARC from the perspective of the listadmin o… John C Klensin
- Re: What I've been wondering about the DMARC prob… Sabahattin Gucukoglu
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: What I've been wondering about the DMARC prob… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: What I've been wondering about the DMARC prob… Brian E Carpenter
- Re: What I've been wondering about the DMARC prob… Theodore Ts'o
- Re: What I've been wondering about the DMARC prob… John Levine
- Re: DMARC from the perspective of the listadmin o… Martin Rex
- Re: DMARC from the perspective of the listadmin o… Doug Barton
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… John Levine
- Re: What I've been wondering about the DMARC prob… Murray S. Kucherawy
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: What I've been wondering about the DMARC prob… Sabahattin Gucukoglu
- Re: What I've been wondering about the DMARC prob… Sabahattin Gucukoglu
- RE: DMARC from the perspective of the listadmin o… MH Michael Hammer (5304)
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- RE: DMARC from the perspective of the listadmin o… MH Michael Hammer (5304)
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Doug Barton
- Re: DMARC from the perspective of the listadmin o… Theodore Ts'o
- Re: DMARC from the perspective of the listadmin o… Randy Bush
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… John C Klensin
- Re: What I've been wondering about the DMARC prob… ned+ietf
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: DMARC from the perspective of the listadmin o… John C Klensin
- Re: DMARC from the perspective of the listadmin o… Pete Resnick
- Re: DMARC and yahoo Jeffrey Altman
- Re: DMARC and yahoo John Levine
- Re: DMARC and yahoo Hector Santos
- Re: DMARC and yahoo John C Klensin
- Re: DMARC and yahoo Brian E Carpenter
- One size doesn't fit all [Re: DMARC ....] Brian E Carpenter
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Somebody always claims something (was Re: DMARC f… Dave Crocker
- Re: DMARC and yahoo Doug Barton
- Re: DMARC and yahoo Hector Santos
- Re: DMARC and yahoo Theodore Ts'o
- RE: DMARC and yahoo Christian Huitema
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC and yahoo Yoav Nir
- Re: DMARC and yahoo John Levine
- Re: DMARC and yahoo Dave Crocker
- Re: What I've been wondering about the DMARC prob… Murray S. Kucherawy
- Re: DMARC and yahoo Doug Royer
- Re: What I've been wondering about the DMARC prob… ned+ietf
- Re: DMARC and yahoo Dave Crocker
- Re: DMARC and yahoo Douglas Otis
- Re: What I've been wondering about the DMARC prob… John Levine
- Re: DMARC and yahoo Brian E Carpenter
- Re: What I've been wondering about the DMARC prob… Murray S. Kucherawy
- Re: DMARC and yahoo Rolf E. Sonneveld
- Re: What I've been wondering about the DMARC prob… ned+ietf
- Re: DMARC and yahoo Douglas Otis
- Re: DMARC from the perspective of the listadmin o… Doug Barton
- Re: DMARC from the perspective of the listadmin o… Martin Rex
- Re: DMARC from the perspective of the listadmin o… Doug Barton
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Martin Rex
- Re: DMARC from the perspective of the listadmin o… Scott Kitterman
- Re: DMARC from the perspective of the listadmin o… Douglas Otis
- Re: DMARC from the perspective of the listadmin o… Scott Kitterman
- Re: DMARC from the perspective of the listadmin o… Martin Rex
- Re: DMARC from the perspective of the listadmin o… John R Levine
- Re: DMARC from the perspective of the listadmin o… Ted Lemon
- Re: DMARC from the perspective of the listadmin o… ned+ietf
- Re: DMARC from the perspective of the listadmin o… Dave Crocker
- Re: DMARC from the perspective of the listadmin o… Martin Rex
- Re: DMARC from the perspective of the listadmin o… Douglas Otis
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- The IETF environment (was: Re: DMARC from the per… ned+ietf
- Re: The IETF environment Dave Crocker
- RE: The IETF environment Adrian Farrel
- Re: The IETF environment Miles Fidelman
- Re: The IETF environment Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Miles Fidelman
- Re: DMARC from the perspective of the listadmin o… Murray S. Kucherawy
- Re: The IETF environment Abdussalam Baryun
- Re: The IETF environment Dale R. Worley
- Re: The IETF environment Brian E Carpenter
- Re: The IETF environment Dave Crocker
- Re: The IETF environment Phillip Hallam-Baker
- Re: DMARC from the perspective of the listadmin o… Hector Santos
- Re: The IETF environment S Moonesamy
- Re: The IETF environment Dave Crocker
- Re: The IETF environment Miles Fidelman
- RE: The IETF environment Christian Huitema
- Re: The IETF environment S Moonesamy
- Re: The IETF environment Miles Fidelman
- Workshop effects [Re: The IETF environment] Brian E Carpenter
- Re: Workshop effects [Re: The IETF environment] Abdussalam Baryun