Security Settings to E-mails

Applying security (encryption and a signature) to e-mail helps prevent spoofing and information leakage.

For details about the optional units required for this function, see "Functions Requiring Optional Configurations", Getting Started.

The S/MIME is used to set security. To configure the S/MIME settings, see "Configuring S/MIME", Security Guide.
Applying security to e-mail may reduce transmission speed.