[dmarc-discuss] How does *this* mailing list interact with dmarc?
madkins at fb.com
Mon Jun 25 10:10:28 PDT 2012
On 6/24/12 6:03 AM, "Steven Chamberlain" <steven at pyro.eu.org> wrote:
>Are facebook.com users able to send outgoing mail?
>The p=reject policy
>means that anyone who mailed this list would be blocked by some
>receiving mailservers (163.com didn't recognise the list last time I
>checked), and you would receive false-positive reports.
Correct. It's been that way for over a year and no one's complained yet.
>Receivers may start to think DMARC verification has too many false
>positives and relax the weight they give to a DMARC failure. Then it
>erodes the effectiveness of DMARC at filtering out phishing mails from
>facebook.com and for other big brands.
I hasn't yet. I don't expect it to in the future.
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