[ NoAccessorMethod ]
[ Version ( since = "3.12.0" ) ]
public abstract bool smtp_auth_plain { get; set; }
Represents the D-Bus property "SmtpAuthPlain".
Since the D-Bus property for this Object property is readable but not writable, it is meaningful to read from it on both the client- and service-side. It is only meaningful, however, to write to it on the service-side.