DMARC record

_dmarc.your_domain.com

dig -t TXT _dmarc.google.com
.../...
_dmarc.google.com.      223     IN      TXT     "v=DMARC1; p=reject; rua=mailto:mailauth-reports@google.com"
.../...

See also

• DMARC, _dmarc, Dmarcian