Copy the SSL/TLS hints table from main settings

[licaon-kter]

[hanzei]

@licaon-kter Could you elaborate a bit? What is the "hint table" you are referring to?

[licaon-kter]

The one from the SMTP settings:

[hanzei]

The security setting is currently unused. #12 has to be done first to decide what options are actually useful.