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Show the DMARC policy of a domain

harmlessDNSdebian, ubuntu
Adjust the values, the command updates live
user@server
dig +short _dmarc.example.com TXT

Prints the DMARC record, which tells recipients how to handle mail that fails SPF and DKIM. The p= value is the policy, rua= the address for aggregate reports. Large mailbox providers now expect bulk senders to have at least p=none.

Also searched as

  • check dmarc record
  • does my domain have dmarc
  • gmail rejects emails dmarc

Related one-liners

All in DNS

Check a domain's DKIM key in DNS

$dig +short default._domainkey.example.com TXT
harmlessDNS

Look up the MX records of a domain

$dig +short example.com MX
harmlessDNS

Look up the reverse DNS (PTR) of an IP address

$dig +short -x 203.0.113.10
harmlessDNS

Show the SPF record of a domain

$dig +short example.com TXT | grep -i "v=spf1"
harmlessDNS

Verify reverse DNS of a mail server IP (FCrDNS)

$ptr=$(dig +short -x 203.0.113.10 | head -n 1); echo "PTR: $ptr"; dig +short "$ptr" A
harmlessDNS

Check DNS propagation across public resolvers

$for ns in 1.1.1.1 8.8.8.8 9.9.9.9 208.67.222.222; do echo "$ns: $(dig +short @$ns example.com A | tr '\n' ' ')"; done
harmlessDNS

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