[dmarc-discuss] facebook user mail, was How does *this* mailing list

Steven M Jones smj+dmarcdiscuss at crash.com
Mon Jun 25 20:39:47 PDT 2012


On 06/25/2012 08:11 PM, Douglas Otis wrote:
> Are users of your DMARC listed domain exchanging messages with any 
> mailing-list?

The domain in question is way outside the target market for DMARC's 
quarantine/reject policies.

This was a "turn it on and see what happens" experiment with a 
non-production, non-mission-critical domain. There are a mere handful of 
users, but some are subscribed to obscure, low-volume mailing lists. 
Some submissions to these lists were rejected, and the policy was 
quickly changed to "monitoring mode."

As expected the aggregate reports showed that this domain was not 
subject to any notable volume of spoofing/phishing.

--S.


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