該方式直接保存為HTML文件，也可以是文本文件，其它格式效果不是很好 MailMessage mmsg = new MailMessage(); mmsg.Subject = "郵件標題"; mmsg.Body = "郵件內容"; mmsg.To.Add("accept@QQ.com");//接收郵箱 byte[] bytes = System.Text.Encoding.Default.GetBytes (@"<table><tr><td width=150>1234567891234567 </td><td width=80>12345678</td></tr></table>"); MemoryStream ms = new MemoryStream(bytes); ContentType ct = new ContentType(); //附件文件類型 ct.MediaType = MediaTypeNames.Text.Html; //附件名稱，可以是其它后綴名 ct.Name = "附件名稱" + DateTime.Now.ToString() + ".html"; mmsg.Attachments.Add(new Attachment(ms, ct)); //SMTP簡單郵件協(xié)議 System.Net.Mail.SmtpClient sc = new System.Net.Mail.SmtpClient(); sc.Host = "127.0.0.1";//主機地址 sc.Port = 25;//端口 //發(fā)送郵箱賬號和密碼 sc.Credentials = new System.Net.NetworkCredential("account", "passWord"); //發(fā)送郵箱 mmsg.From = new MailAddress("account@qq.com"); sc.Send(mmsg); //釋放流資源 ms.Close(); ms.Dispose();