C# จะขอใช้บริการของ Smtp จะต้องทำอย่างไรบ้าง

        MailMessage myMail = new MailMessage();

		myMail.To = "[email protected]";
		myMail.From = "[email protected]";
		myMail.Subject = "My Subject";

		myMail.BodyFormat = MailFormat.Text;
		myMail.Body = "My Body & Description";
		
		SmtpMail.SmtpServer = "192.168.104.104";  //*** Mail Server ***//
		SmtpMail.Send(myMail);

		myMail = null;

		this.lblText.Text = "Mail Sending.";