Free domain tool

TLS-RPT Check

Validate SMTP TLS failure reporting configuration.

Paste a domain or website URL — we use only the hostname.

What this test checks

Record syntax and report destinations.

Why this matters

Reports can reveal transport failures that neither sender nor recipient notices promptly.

How to fix common problems

Publish a valid rua destination that your team can receive and review.

FAQ

Does TLS-RPT enforce TLS?

No. It reports failures; MTA-STS and DANE provide policy mechanisms.