The Password property specifies the password used to
authenticate the user. If the property is not explicitly set, then an
application must provide the password to the Connect method.
Once the connection has been established, this property will be
updated with the appropriate value.
If you have assigned a value to the BearerToken
property, this property will return an empty string. If a value is
assigned to this property, the BearerToken
property will be cleared and standard password authentication will be
used when connecting to the mail server.