Collect reports and observe failures without asking receivers to quarantine or reject them.
Email authentication
DMARC checker
Inspect the DMARC policy that tells receivers how to handle mail that fails SPF or DKIM alignment.
Quick guide
What DMARC adds to SPF and DKIM
DMARC checks whether the domain visible to the recipient aligns with SPF and/or DKIM authentication. It also lets a domain publish a handling policy and reporting addresses.
A p=none policy is normally used for monitoring. p=quarantine and p=reject ask receivers to take progressively stronger action on messages that fail DMARC.
Ask receivers to treat failing messages as suspicious, often by sending them to spam.
Ask receivers to reject messages that fail DMARC.
The _dmarc TXT record is parsed into its policy, alignment settings, reporting addresses, percentage and other DMARC tags.
- Checking enforcement policy
- Reviewing SPF/DKIM alignment settings
- Confirming aggregate-report destinations
Terminal shortcut
Prefer the command line?
Read a DMARC policy from the Terminal.
> dmarc example.com
Run in Terminal ->