Paste a DMARC DNS record into the input field to check if it is valid.
Validation Success
DMARC is a standard for email servers to tell how to handle validation errors in SPF and DKIM. It is a DNS TXT record with different values, defining rules on when to reject the email, how to report failures etc.
The TXT record itself must be on the _dmarc subdomain of the email domain. E.g. emails from example.com must have a DMARC record at _dmarc.example.com.
The content is a list of tags, separated by a semicolon. It must always start with "v=DMARC1" so the DMARC record can be easily identified.
The most important tags are:
- p: Tells what to do with emails that fail validation. Values can be "none" (do nothing), "quarantine" (treat email as suspicious - e.g. place it in the spam folder) or "reject" (outright discard the email upon receival). This tag is required and must be placed after the "v=DMARC1" tag.
- adkim: Tells how strictly to handle DKIM validation errors. Values can be "r" (relaxed, this is the default) or "s" (strict).
- aspf: Tells how strictly to handle SPF validation errors. Like adkim, values can be "r" (relaxed, this is the default) or "s" (strict).
A full list of rules can be found on the DMARC specification page.