Kavach

Check · Domain & email identity · default severity info

TLS reporting (TLS-RPT)

What Kavach checks

Asks sending servers to report TLS delivery failures to you.

Why it matters

You can't fix mail-transport problems you never hear about.

How to fix it

Add: _smtp._tls TXT "v=TLSRPTv1; rua=mailto:tlsrpt@yourdomain"

Stack-specific fixes: nginx · Apache · Caddy · Express / Node · Cloudflare

Limitations

This is a read-only observation of publicly reachable configuration at scan time. It can produce false positives/negatives (caching layers, geo-specific responses, bot defences) and does not test application logic or authenticated areas. Rule version 1.

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