Free MTA-STS Checker: Validate Policy and TLS-RPT
Tool demo · MTA-STS Checker
A short walkthrough of the free WarmInboxes MTA-STS checker: validate a domain's MTA-STS record, its policy file and its TLS-RPT reporting address.
MTA-STS Checker
Validate your _mta-sts record and policy file: enforce mode, MX patterns and TLS-RPT.
Run the MTA-STS Checker → Free, no account.