Advanced protocol options Authentication type for the protocol negotiations basic ntlm plain login basic The default 'connect' authentication type ntlm Supported authentication types for the 'connect' protocol plain The default 'smtp' authentication type login Supported authentication types for the 'smtp' protocol (basic|ntlm|plain|login) Domain for the 'connect' protocol. domain domain Destination address for the 'connect' protocol #include #include Password for the protocol negotiations txt Authentication password Username for the protocol negotiations txt Authentication username