Hostname of SMTP Server
Port of SMTP server
If enabled, the client attempt to authenticate the user using the AUTH command. Default to false.
If activated, it enables the use of the STARTTLS command (if supported by the server) to switch the connection to a TLS-protected connection before issuing any login commands. Note that an appropriate trust store must be configured, so that the client will trust the server’s certificate. Default to false.
Take a look at Email Connector Call.