#region 发送邮箱方法         /// <summary>         /// 发送邮箱方法         /// </summary>         /// <param name="useremail">发送到的邮箱地址</param> 　　　　/// <param name="username">姓名</param>         /// <returns>发送成功 返回 true 否则返回 false</returns>         public bool GetEmail(string useremail, string username)         {             DateTime dt = DateTime.Now;             string gettime = dt.ToLongDateString().ToString();             string _MailAddress = "邮箱地址";             string _MailNickName = "xxx";             string _MailPassword = "邮箱密码";             string _MailSmtpHost = "smtp.163.com";             string _MailSmtpPort = "25";             string _To = useremail;             string _Title = "xxxxxx";             string _Body = "亲爱的“" + username + "”用户:<br><br>您好！";             string strXmlFile = HttpContext.Current.Server.MapPath("/config/mail.config");             XmlControl XmlTool = new XmlControl(strXmlFile);             XmlTool.Update("Root/Address", _MailAddress);             XmlTool.Update("Root/NickName", _MailNickName);             XmlTool.Update("Root/Password", _MailPassword);             XmlTool.Update("Root/SmtpHost", _MailSmtpHost);             XmlTool.Update("Root/SmtpPort", _MailSmtpPort);             XmlTool.Update("Root/ToAddress", useremail);             XmlTool.Update("Root/UserInfo", username);             XmlTool.Save();             XmlTool.Dispose();             if (GmailHelp.GmailSendMail(username, _To, _Body, _Title, _MailAddress, _MailNickName, _MailPassword, _MailSmtpHost, int.Parse(_MailSmtpPort)))             {                 return true;             }             else             {                 return false;             }         }         #endregion         #region   获取主机名称         /// <summary>         /// 获取主机名称    返回如  www.myWeb.com  or   www.myWeb.com:8080  注意没有 http://         /// </summary>         /// <returns></returns>         public static string GetHttpHost()         {             int Port = HttpContext.Current.Request.Url.Port;             if (Port == 80)             {                 return HttpContext.Current.Request.Url.Host;             }             else             {                 return HttpContext.Current.Request.Url.Host + ":" + Port;             }         }         #endregion /// <summary>         /// 调用 GmailSendMail("收件姓名","收件人","邮件内容","邮件标题","发件人","发件人姓名","密码","smtp主机","端口")IsBodyHtml 表示所使用的邮件是HTML格式的, 还是Text  文本格式的 EnableSsl 是否启用 SSL 连接, GMail 是需要的, 163 就不需要了...         /// </summary>         /// <param name="MailTo"></param>         /// <param name="StrBody"></param>         /// <param name="strSubjec"></param>         /// <param name="MailFrom"></param>         /// <param name="MailFromName"></param>         /// <param name="myPwd"></param>         /// <param name="smtpHost"></param>         /// <param name="smtpPort"></param>         /// <returns></returns>         public static bool GmailSendMail(string UserInfo, string MailTo, string StrBody, string strSubjec, string MailFrom, string MailFromName, string myPwd, string smtpHost, int smtpPort)         {             bool flag = true;             string[] _mail = MailTo.Split(',');             System.Net.Mail.MailMessage onemail = new System.Net.Mail.MailMessage(MailFrom, MailTo, strSubjec, StrBody);             onemail.BodyEncoding = System.Text.Encoding.UTF8;             onemail.IsBodyHtml = true;             //onemail.From = new System.Net.Mail.MailAddress(MailFrom);             onemail.From = new MailAddress(MailFrom, "xxx", System.Text.Encoding.UTF8);             onemail.To.Add(new System.Net.Mail.MailAddress(MailTo));             onemail.Subject = strSubjec;             onemail.Body = StrBody;             System.Net.Mail.SmtpClient clint = new System.Net.Mail.SmtpClient(smtpHost, smtpPort);//发送邮件的服务器             clint.Credentials = new System.Net.NetworkCredential(MailFrom, myPwd);             clint.EnableSsl = true;//Gmail 必须的             clint.Timeout = 10000;//必须的             try             {                 clint.Send(onemail);//发送                 SaveSucLog(UserInfo, MailTo, MailFrom, MailFromName, smtpHost);//保存正确日志                 flag = true;             }             catch (Exception ex)             {                 SaveErrLog(UserInfo, MailTo, MailFrom, MailFromName, smtpHost, ex.Message);//保存错误日志                 flag = false;             }             return flag;         }         /// <summary>         /// 保存正确日志         /// </summary>         /// <param name="MailFrom"></param>         /// <param name="MailFromName"></param>         /// <param name="MailSmtpHost"></param>         private static void SaveSucLog(string UserInfo, string MailTo, string MailFrom, string MailFromName, string MailSmtpHost)         {             System.IO.StreamWriter sw = new System.IO.StreamWriter(HttpContext.Current.Server.MapPath("/log/mailsuccess_" + DateTime.Now.ToString("yyyyMMdd") + ".txt"), true, System.Text.Encoding.UTF8);             sw.WriteLine(System.DateTime.Now.ToString());             sw.WriteLine("t收信姓名：" + UserInfo);             sw.WriteLine("t收 信 人：" + MailTo);             sw.WriteLine("tSMTP服务器：" + MailSmtpHost);             sw.WriteLine("t发 信 人：" + MailFromName + "<" + MailFrom + ">");             sw.WriteLine("---------------------------------------------------------------------------------------------------");             sw.Close();             sw.Dispose();         }         /// <summary>         /// 保存错误日志         /// </summary>         /// <param name="MailFrom"></param>         /// <param name="MailFromName"></param>         /// <param name="MailSmtpHost"></param>         /// <param name="ErrMsg"></param>         private static void SaveErrLog(string UserInfo, string MailTo, string MailFrom, string MailFromName, string MailSmtpHost, string ErrMsg)         {             System.IO.StreamWriter sw = new System.IO.StreamWriter(HttpContext.Current.Server.MapPath("/log/mailerror_" + DateTime.Now.ToString("yyyyMMdd") + ".txt"), true, System.Text.Encoding.UTF8);             sw.WriteLine(System.DateTime.Now.ToString());             sw.WriteLine("t收信姓名：" + UserInfo);             sw.WriteLine("t收 信 人：" + MailTo);             sw.WriteLine("tSMTP服务器：" + MailSmtpHost);             sw.WriteLine("t发 信 人：" + MailFromName + "<" + MailFrom + ">");             sw.WriteLine("t错误信息：rn" + ErrMsg);             sw.WriteLine("---------------------------------------------------------------------------------------------------");             sw.Close();             sw.Dispose();         }