Fix · nginx
Fix “TLS reporting (TLS-RPT)” on nginx
Add: _smtp._tls TXT "v=TLSRPTv1; rua=mailto:tlsrpt@yourdomain"
No server-level snippet for this control on nginx; apply the guidance below.
Verify the fix
Re-run the TLS reporting (TLS-RPT) check after deploying. Test config changes in staging first and keep a rollback: a wrong header can break a site faster than a missing one.
Other stacks: Apache · Caddy · Express / Node · Cloudflare