Email Authentication
SPF, DKIM and DMARC records that stay the way you set them.
Email authentication records live in DNS as TXT records. A DNS monitor with an expected value watches them, so a deleted or weakened DMARC policy is caught right away.
What it detects
- A DMARC policy that changed or disappeared
- A missing DKIM selector record
- SPF changes (when the root domain has no other TXT records)
How you're alerted
- The DNS check fails as soon as the record stops matching.
Notifications go to any of 8 channels — see notifications.
- Runs from
- Every probe region you assign — down only when all of them agree
- How
- DNS monitor, TXT record type, expected value
- Available on
- Free, Professional · Enterprise and Custom on request
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Start monitoring everything in minutes
Create a free account, add your first check and get alerted the moment something breaks — no credit card required.