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DMARC Generator

Build a valid DMARC TXT record for your domain. Choose a policy, add a reporting address, and copy the result into your DNS.

Step 1 - Policy
Step 2 - Aggregate report email(recommended)

Aggregate XML reports are sent daily or weekly by receiving mail servers. Required to see who is sending email on your domain's behalf.

Generated TXT record
v=DMARC1; p=none
Name: _dmarc.yourdomain.comType: TXTTTL: 3600
Add to DNS
_dmarc.yourdomain.com.  3600  IN  TXT  "v=DMARC1; p=none"

Related Tools

Email Inspector

Enter an email address to validate it and grade its domain security, or enter a domain alone to check SPF, DMARC, DKIM, and MX records.

SPF Analyzer

Resolve and analyze the SPF record for any domain - including recursive include chains, DNS lookup counting, and policy violation detection.

Email Header Analyzer

Paste raw email headers to trace the delivery path, check authentication results, and measure hop-by-hop timing.

About this tool

DMARC (Domain-based Message Authentication, Reporting, and Conformance) tells receiving mail servers what to do with messages that fail SPF or DKIM checks. A DMARC record is published as a DNS TXT record at _dmarc.yourdomain.com. Start with p=none to collect reports without affecting delivery, then gradually move to quarantine and finally reject once you have confirmed all legitimate mail is passing.

Aggregate reports (rua=) are compressed XML files sent by large mail providers. They show which IP addresses sent mail claiming to be your domain, and whether SPF and DKIM passed. Forensic reports (ruf=) are per-message and contain full message headers - many providers skip them for privacy reasons.