[Mailman-Users] Digest option for Yahoo and AOL subscribers?

John Levine johnl at taugh.com
Sun May 25 22:13:23 CEST 2014

>My understanding is that DMARC WAS going through the standardization
>process, and actually was to the state where experimental use was
>justified (and in some sense actually required). ...

No, not at all.  DMARC was designed and implemented by a small closed
group of large companies listed on the DMARC web site at

It had been running for about two years at various ISPs with little
trouble until AOL and Yahoo jumped the shark last month.  There are
free libraries which work pretty well, and I've been collecting DMARC
reports on my various domains since Feb 2012 (but not, of course,
paying attention to anyone's published policies on inbound mail.)

The DMARC group has asked the RFC Editor to publish the spec as a
non-standards-track non-IETF independent submission.  There was
briefly talk of making it standards track until the DMARC group
realized that gave the IETF change control, and we likely would change
it, which they didn't want.  The RFC Editor is currently thinking
about it, and probably will publish on the theory that even if it's a
bad idea, it might as well be documented.


PS: This is first hand. I know the people involved.

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