Email/SMTPS Registry Key
Port 465 can be used for email submission. This uses SMTPS which is
essentially SMTP with authentication using SMTP_AUTH. The port also requires
an initial SSL/TLS connection. In order for JANOS to know to make that
initial secure connection you must set this key to enabled. This should be
disabled for email delivery over ports 25 and 587. For either of these ports
the Email/StartTLS key should be enabled.
HELP Topics: Email/Port