There are multiple services, such as Valimail or Dmarcian or whatever which
can help you make that decision, though perhaps they're all a bit biased
towards actually making the transition to quarantine/reject.
It may be possible to switch to quarantine until the blast is contained.
You do have
That graph is awful, especially how it's conflating those three things.
My guess (I don't know much about the postmaster tools), is that SPF is
only judging what has an envelope sender for your domain, DKIM is only
judging what has a DKIM signature, and DMARC is judging what is "From" your
Is the information in this graph consistent with what's in Google's
aggregate feedback? (This is to determine whether Google's DMARC
implementation is broken, or just the postmaster tool.)
- Roland
On 05/10/17 18:51, The Venus Project Postmaster via dmarc-discuss wrote:
Hi everyone,
For
Hi everyone,
For the past several months we have been experiencing ups and downs in
our DMARC authentication with Gmail, as seen from Google's postmaster
tool (see attached screenshot). DKIM and SPF authentication are
consistently at 100%, but DMARC authentication varies wildly, although
