C＃编程发送邮件

//结束发送

Data = Data+ "." + CRLF;

szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());

NetStrm.Write(szData,0,szData.Length);

lstlog.Items.Add(RdStrm.ReadLine());

//退出

Data = "QUIT " + CRLF;

szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());

NetStrm.Write(szData,0,szData.Length);

lstlog.Items.Add(RdStrm.ReadLine());

//关闭连接

NetStrm.Close();

RdStrm.Close();

lstlog.Items.Add("连接关闭");

lstlog.Items.Add("发送成功");

//将鼠标恢复箭头状

Cursor.Current = cr;

}