How to use it
- 1
Enter a domain without protocol.
- 2
Run the _dmarc TXT check.
- 3
Review policy, pct, reporting, and alignment tags.
What the tool can do
- Finds one or multiple v=DMARC1 records.
- Checks p=, sp=, pct=, rua/ruf, adkim, and aspf.
- Separates monitoring-only p=none from enforcement policy.
Common use cases
- Find missing DMARC or duplicate DMARC records.
- Check readiness for quarantine/reject.
- Control mail authentication hardening.
How it works inside
The _dmarc.domain TXT record is checked at DNS level.
DMARC enforcement requires correct SPF/DKIM alignment.
Questions and answers
Is p=none an error?
No, it is monitoring mode. For protection, move toward quarantine or reject after SPF/DKIM validation.
Do I need rua?
Yes, aggregate reports help monitor alignment and safely tighten policy.
