New tricks for your old email.

Tools

This tool performs validity and remaining time on TLS certificates being used by your live services. It can use STARTTLS to fetch the existing X.509 certificates your services are currently using, testing the service as your users would.

Use

This tool can verify the MTA-STS and TLSRPT configuration of a given domain name, providing useful diagnostics, feedback and recommendations. Performed checks include references to the relevant standards they are derived from.

Use