why DMARC policy detected as not enabled

Question

I dont know why, when I test my domain via mxtoolbox this week I got result DMARC policy is not enabled. This is not happened before, everything is ok and I never do any changes in my DNS server.

I checked my DNS record and there is no issue, my DMARC policy set to quarantine.

_dmarc.mydomain.com.    IN  TXT "v=DMARC1; p=quarantine; pct=100; ruf=mailto:admin@mydomain.com; rua=mailto:admin@mydomain.com; sp=none; adkim=s; aspf=s"

How to solve this problem? Thanks.

This website says your DMARC policy is valid: https://vamsoft.com/support/tools/dmarc-policy-validator — Dai, Nov 21 '22 at 02:57
I use mxtoolbox.com , as shown in my picture above. it is show dmarc policy is not enabled — potitit, Nov 21 '22 at 03:04

score 0 · Answer 1 · answered Nov 23 '22 at 17:53

Maybe it refers to your subdomain policy (sp). With your current DMARC record, I could simply send (i.e. spoof) emails from subdomain.mydomain.com instead of mydomain.com. Remove sp=none; so that subdomains inherit the policy of your organizational domain.

why DMARC policy detected as not enabled

1 Answers1