Is Dynamics NAV supporting Transport Layer Security (TLS) when sending emails?

Hi everyone,
Microsoft in the help says about the Secure Connection Field, SMTP Mail Setup Table : Indicates if your SMTP mail server setup requires a secure connection that uses a cryptography or security protocol, such as secure socket layers (SSL). Clear the check box if you do not want to enable this security setting.
The description implies that TLS is supported,but has anybody actually implemented it?
Kind regards