The authentication mechanism to be used when connecting to the Email server.
Possible ValuesAUTO, NONE, IMPLICIT, EXPLICIT
If SSLMode is set to NONE, default plaintext authentication is used to log in to the server. If SSLMode is set to IMPLICIT, the SSL negotiation will start immediately after the connection is established. If SSLMode is set to EXPLICIT, the driver will first connect in plaintext, and then explicitly start SSL negotiation through a protocol command such as STARTTLS. If SSLMode is set to AUTO, if the remote port is set to the standard plaintext port of the protocol (where applicable), the component will behave the same as if SSLMode is set to EXPLICIT. In all other cases, SSL negotiation will be IMPLICIT.