- Domain-Based Message Authentication, Reporting, and Conformance
- What it does: Combines SPF and DKIM results and tells the receiver what to do if an email fails the checks.
- You can configure your DMARC policy to instruct receivers to do three things:
- Nothing – Just collect reports, but don’t block anything.
- Quarantine – Send suspicious emails to spam.
- Reject – Block emails that fail the checks.