Re: Mailman 2.1.16 [DMARC: perspectives from a listadmin of large open-source lists
"John Levine" <johnl@taugh.com> Mon, 14 April 2014 22:00 UTC
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Date: Mon, 14 Apr 2014 22:00:17 -0000
Message-ID: <20140414220017.32179.qmail@joyce.lan>
From: John Levine <johnl@taugh.com>
To: ietf@ietf.org
Subject: Re: Mailman 2.1.16 [DMARC: perspectives from a listadmin of large open-source lists
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>> The DMARC proponents did engage mailman. Version 2.1.16 includes support >> for a setting that makes the operation of the list DMARC-friendly, though >> likely in a way some people will find unpalatable. > >Please tell us more about that. It turns it into a pure forwarder, no subject tags, message footers, or anything else that might break a DKIM signature. Of course, even if you do that, it still won't solve the problems that DMARC causes. Consider, for example, a Yahoo mail user who prefers the Gmail interface, so has set up Gmail to collect her Yahoo mail, and sends her mail from Gmail using her existing Yahoo address. Gmail does COI confirmation before letting you use your other outgoing address, no forgery allowed. Yahoo provides POP and IMAP service, so this is clearly something Yahoo anticipated. As I said in my prior screed, the only way to un-break DMARC is to whitelist the exceptions. R's, John
- Re: DMARC: perspectives from a listadmin of large… John R Levine
- Re: DMARC: perspectives from a listadmin of large… Sabahattin Gucukoglu
- Re: DMARC: perspectives from a listadmin of large… Scott Kitterman
- Re: DMARC: perspectives from a listadmin of large… Brian E Carpenter
- Re: DMARC: perspectives from a listadmin of large… John R Levine
- Re: DMARC: perspectives from a listadmin of large… Sabahattin Gucukoglu
- Re: DMARC: perspectives from a listadmin of large… Dave Crocker
- DMARC: perspectives from a listadmin of large ope… Robin H. Johnson
- Re: DMARC: perspectives from a listadmin of large… Robin H. Johnson
- Re: DMARC: perspectives from a listadmin of large… Robin H. Johnson
- Re: DMARC: perspectives from a listadmin of large… ned+ietf
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: DMARC: perspectives from a listadmin of large… John R Levine
- RE: DMARC: perspectives from a listadmin of large… Alex Ojeda
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: DMARC: perspectives from a listadmin of large… John Levine
- Re: DMARC: perspectives from a listadmin of large… Alessandro Vesely
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… John Levine
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… ned+ietf
- Re: DMARC: perspectives from a listadmin of large… Dave Crocker
- Re: DMARC: perspectives from a listadmin of large… John R Levine
- Re: DMARC: perspectives from a listadmin of large… John C Klensin
- Re: DMARC: perspectives from a listadmin of large… John R Levine
- Re: DMARC: perspectives from a listadmin of large… Sabahattin Gucukoglu
- Re: DMARC: perspectives from a listadmin of large… John C Klensin
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… John C Klensin
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- RE: DMARC: perspectives from a listadmin of large… l.wood
- Re: DMARC: perspectives from a listadmin of large… Dave Crocker
- Re: DMARC: perspectives from a listadmin of large… John C Klensin
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- RE: DMARC: perspectives from a listadmin of large… MH Michael Hammer (5304)
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Mailman 2.1.16 [DMARC: perspectives from a listad… Brian E Carpenter
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Theodore Ts'o
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Dave Cridland
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- Re: protecting the Internet from DMARC damage, wa… John Levine
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… John Levine
- Re: DMARC: perspectives from a listadmin of large… Dave Cridland
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… John Levine
- RE: DMARC: perspectives from a listadmin of large… MH Michael Hammer (5304)
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… Dave Crocker
- Re: DMARC: perspectives from a listadmin of large… Murray S. Kucherawy
- RE: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: DMARC: perspectives from a listadmin of large… Douglas Otis
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… John Levine
- RE: protecting the Internet from DMARC damage, wa… MH Michael Hammer (5304)
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Brian E Carpenter
- RE: protecting the Internet from DMARC damage, wa… John R Levine
- Re: DMARC: perspectives from a listadmin of large… Doug Barton
- Re: DMARC: perspectives from a listadmin of large… Scott Kitterman
- Re: DMARC: perspectives from a listadmin of large… Scott Kitterman
- Re: protecting the Internet from DMARC damage, wa… Murray S. Kucherawy
- Re: DMARC: perspectives from a listadmin of large… Dave Cridland
- Re: DMARC: perspectives from a listadmin of large… Alessandro Vesely
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Michael Richardson
- Re: DMARC: perspectives from a listadmin of large… ned+ietf
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Theodore Ts'o
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… John R Levine
- Re: DMARC: perspectives from a listadmin of large… Dave Crocker
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Michael Richardson
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Theodore Ts'o
- Re: DMARC: perspectives from a listadmin of large… S Moonesamy
- Re: DMARC: perspectives from a listadmin of large… Pete Resnick
- Re: Mailman 2.1.16 [DMARC: perspectives from a li… Brian E Carpenter
- RE: DMARC: perspectives from a listadmin of large… MH Michael Hammer (5304)
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… Hector Santos
- Re: DMARC: perspectives from a listadmin of large… Brian E Carpenter
- Re: DMARC: perspectives from a listadmin of large… Theodore Ts'o
- Re: DMARC: perspectives from a listadmin of large… Sabahattin Gucukoglu
- Re: DMARC: perspectives from a listadmin of large… Scott Kitterman
- Re: DMARC: perspectives from a listadmin of large… Theodore Ts'o
- Let's talk (was: DMARC: perspectives from a lista… S Moonesamy
- (DMARC) Why mailing lists are only sort of special John R Levine
- RE: Let's talk (was: DMARC: perspectives from a l… MH Michael Hammer (5304)
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… John R. Levine
- Re: DMARC: perspectives from a listadmin of large… Pete Resnick
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: DMARC: perspectives from a listadmin of large… Michael Richardson
- Re: DMARC: perspectives from a listadmin of large… John Levine
- RE: Let's talk (was: DMARC: perspectives from a l… S Moonesamy
- Re: Let's talk (was: DMARC: perspectives from a l… Dave Cridland
- Re: (DMARC) Why mailing lists are only sort of sp… Murray S. Kucherawy
- Re: (DMARC) Why mailing lists are only sort of sp… Dave Cridland
- Re: (DMARC) Why mailing lists are only sort of sp… Dave Cridland
- RE: Let's talk (was: DMARC: perspectives from a l… MH Michael Hammer (5304)
- Re: (DMARC) Why mailing lists are only sort of sp… John R Levine
- Re: (DMARC) Why mailing lists are only sort of sp… Murray S. Kucherawy
- Re: (DMARC) Why mailing lists are only sort of sp… Murray S. Kucherawy
- Re: (DMARC) Why mailing lists are only sort of sp… Miles Fidelman
- Re: (DMARC) Why mailing lists are only sort of sp… Pete Resnick
- Re: (DMARC) Why mailing lists are only sort of sp… tytso
- Re: DMARC: perspectives from a listadmin of large… Miles Fidelman
- Re: (DMARC) Why mailing lists are only sort of sp… Mark Andrews
- Re: (DMARC) We've been here before, was Why maili… John R Levine
- Re: (DMARC) How a whitelist would work, was Why m… John R Levine
- Re: (DMARC) We've been here before, was Why maili… Pete Resnick
- Re: (DMARC) Why mailing lists are only sort of sp… Dave Cridland
- Re: (DMARC) Why mailing lists are only sort of sp… Yoav Nir
- Re: (DMARC) We've been here before, was Why maili… John R Levine
- Re: (DMARC) Why mailing lists are only sort of sp… Martin Rex
- Re: (DMARC) Why mailing lists are only sort of sp… Yoav Nir
- Re: (DMARC) Why mailing lists are only sort of sp… Dave Cridland
- RE: (DMARC) Why mailing lists are only sort of sp… MH Michael Hammer (5304)
- Re: (DMARC) We've been here before, was Why maili… Pete Resnick
- Re: (DMARC) Why mailing lists are only sort of sp… Miles Fidelman
- Re: (DMARC) We've been here before, was Why maili… ned+ietf
- Re: (DMARC) We've been here before, was Why maili… Miles Fidelman
- Re: (DMARC) We've been here before, was Why maili… Martin Rex
- Re: (DMARC) We've been here before, was Why maili… ned+ietf
- Re: (DMARC) We've been here before, was Why maili… Douglas Otis
- Re: (DMARC) We've been here before, was Why maili… Martin Rex
- Re: (DMARC) We've been here before, was Why maili… John Levine
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… John Levine
- Re: (DMARC) We've been here before, was Why maili… Martin Rex
- Re: (DMARC) We've been here before, was Why maili… John Levine
- Re: (DMARC) We've been here before, was Why maili… Michael Richardson
- Re: (DMARC) How a whitelist would work, was Why m… Michael Richardson
- Re: (DMARC) Why mailing lists are only sort of sp… Michael Richardson
- Re: (DMARC) How a whitelist would work, was Why m… John R Levine
- Re: (DMARC) How a whitelist would work, was Why m… Miles Fidelman
- Re: (DMARC) Why mailing lists are only sort of sp… John Levine
- Re: (DMARC) We've been here before, was Why maili… John Levine
- Re: (DMARC) How a whitelist would work, was Why m… Yoav Nir
- Re: (DMARC) How a whitelist would work, was Why m… John R Levine
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… John R Levine
- Re: (DMARC) We've been here before, was Why maili… Theodore Ts'o
- Re: (DMARC) We've been here before, was Why maili… Douglas Otis
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… John R Levine
- Re: (DMARC) We've been here before, was Why maili… Theodore Ts'o
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… tytso
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… tytso
- Re: (DMARC) We've been here before, was Why maili… Brian E Carpenter
- Re: (DMARC) We've been here before, was Why maili… Murray S. Kucherawy
- Re: (DMARC) We've been here before, was Why maili… Theodore Ts'o
- [off-off-track] Re: (DMARC) We've been here befor… Miles Fidelman
- Re: (DMARC) We've been here before, was Why maili… John Levine
- Re: (DMARC) We've been here before, was Why maili… Alessandro Vesely