What this tool checks
- _smtp._tls TXT record
- v=TLSRPTv1 detection
Email Deliverability Tools
TLS-RPT Checker
Check SMTP TLS reporting records for delivery encryption visibility and MTA-STS support.
Run the check
Enter a public target. Checks are a point-in-time sample; private and internal addresses are blocked.
Why it matters
TLS-RPT reports delivery encryption problems for domains using MTA-STS.
Plain-English examples
- Check _smtp._tls.example.com
Recommended fixes
- Send reports to a monitored mailbox
- Pair TLS-RPT with MTA-STS
Understanding the result
Use findings as a starting point, confirm the intended configuration with your provider, and retest after a change. A successful check does not guarantee security, delivery, uptime or search rankings. Results depend on public DNS and what the server exposes at the time of the check.
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