responding to DMARC breakage

William Herrin bill at
Sat Apr 12 14:29:59 UTC 2014

On Sat, Apr 12, 2014 at 10:12 AM, Miles Fidelman
<mfidelman at> wrote:
> What kind of responses are available?  In the broader scope of things, what
> kinds of responses are typical if someone publishes corrupted information
> and then doesn't cooperate in fixing the situation - be that through
> obliviousness, incompetence, lack of resources, laziness, or active intent
> (criminal or not)?

1. Treat DMARC records which break mailing lists as malformed.

2. Treat messages with malformed DMARC records as a validation failure
and act as directed for validation failures.


William D. Herrin ................ herrin at  bill at
3005 Crane Dr. ...................... Web: <>
Falls Church, VA 22042-3004

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