A Csharp class to send email.hese managed wrappers wrap each of the methods on the original interfaces and correctly communicate with the unmanaged server. In addition, some of the original methods are exposed as properties instead of pairs of methods. For example, all pairs of Set and Query methods are exposed as properties-Csharp managed to send email.hese w rappers wrap each of the methods on the original interfaces and correctly communicate with the unmanaged server. In addition, some of the original methods are exposed as prop erties instead of pairs of methods. For example , all pairs of Set and Query methods are exposed a 's properties