DMARC records are simple text records allowing implementation of the Domain-based Message Authentication, Reporting and Conformance email validation system at your domain.
DMARC records can be added into our name servers like any other with the following notes to assist you in correct addition of the record:
- The host for a DMARC record should always be _dmarc (remember not to reference the parent domain in the host field, the host will be simply: _dmarc)
- The record type should be TXT
- The content of the record will be provided by your email provider
If you want to check your DMARC record has been added correctly and DMARC is corectly implemented for your domain you can use one of the following tools:
https://dmarcian.com/dmarc-inspector/
https://otalliance.org/resources/spf-dmarc-record-validator