Email Security
All tools →MTA-STS & TLS-RPT
mta-sts policy + TLSRPT rua validation. — free, private, client-side. API: POST /api/v1/tools/mta-sts-tlsrpt
MTA-STS & TLS-RPT — SMTP transport security
Checks the mta-sts TXT record, fetches /.well-known/mta-sts.txt over HTTPS, and reads the _smtp._tls TLS-RPT record.
Runs 100% in your browser — no data leaves your device. For programmatic use:
curl -X POST /api/v1/tools/mta-sts-tlsrpt -d '{ "input": "hello" }' → JSON. See /docs/api.