I'm trying to enable DMARC.
The problem that I see is that since I use 3rd party companies for marketing emails, DMARC SPF fails for those emails because they put email from their own domain into return path (i.e. bounce email address).
This is what I see in the report:
<row> <source_ip>3rdpartyIP</source_ip> <count>1</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>fail</spf> </policy_evaluated> </row> <identifiers> <header_from>mydomain.com</header_from> </identifiers> <auth_results> <dkim> <domain>mydomain.com</domain> <result>pass</result> </dkim> <spf> <domain>3rdparty.domain</domain> <result>pass</result> </spf> </auth_results>
I.e. auth_results are fine, but policy_evaluated fails.
So the question is:
Is there any way to check only for DKIM in the DMARC policy?
Thanks, Best regards, Roman