Use the following procedure to enable SSL encryption for SMTP connections.
Log in as the network administrator from the control panel.
Press [System Settings].
Press [File Transfer].
Press [SMTP Server].
In "Use Secure Connection (SSL)", press [On].
If you are not using SSL for SMTP connections, press [Off].
When "Use Secure Connection (SSL)" is set to [On], the port number changes to 465.
Press [OK].
Log out.
If you set "Use Secure Connection (SSL)" to [On], you cannot bypass the SMTP server to send Internet Fax documents directly.