1   MailMessage mailMsg = new MailMessage(); //using System.Net; 引用
2             mailMsg.From = new MailAddress("[email protected]", "lichunfang");//发件邮箱
3             mailMsg.To.Add(new MailAddress("[email protected]", "lichunfang"));//收件邮箱
4             mailMsg.Subject = "Hello ..."; //主题
5             mailMsg.Body = "ni hao  ,,,,,";//.内容
6             SmtpClient client = new SmtpClient("smtp.163.com"); //smtp.126.com  smtp.qq.com 
7             client.Credentials = new NetworkCredential("lcfhn168", "");//用户名，密码
8             client.Send(mailMsg);