using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net.Mail;
using System.Text;
using System.Web;

namespace CalslNum.Helper
{
    /// <summary>
    ///傳送郵件類
    /// </summary>
    public class MailService
    {
        /// <summary>  
        /// 傳送郵件程式呼叫方法 SendMail("
 
[email protected]", "某某人", "[email protected]", "你好", "我測試下郵件", "郵箱登入名", "郵箱密碼", "smtp.126.com", true,);  
        /// </summary>  
        /// <param name="from">傳送人郵件地址</param>  
        /// <param name="fromname">傳送人顯示名稱</param>  
        /// <param name="to">傳送給誰（郵件地址）</param>  
        /// <param name="subject">標題</param>  
        /// <param name="body">內容</param>  
        /// <param name="username">郵件登入名</param>  
        /// <param name="password">郵件密碼</param>  
        /// <param name="server">郵件伺服器 smtp伺服器地址</param>  
        /// <param   name= "IsHtml "> 是否是HTML格式的郵件 </param>  
        /// <returns>send ok</returns>  
        public static bool SendMail(string from, string fromname, string to, string subject, string body, string server, string username, string password, bool IsHtml)
        {
            //郵件傳送類  
            MailMessage mail = new MailMessage();
            try
            {
                //是誰傳送的郵件  
                mail.From = new MailAddress(from, fromname);
                //傳送給誰  
                mail.To.Add(to);
                //標題  
                mail.Subject = subject;
                //內容編碼  
                mail.BodyEncoding = Encoding.Default;
                //傳送優先順序  
                mail.Priority = MailPriority.High;
                //郵件內容  
                mail.Body = body;
                //是否HTML形式傳送  
                mail.IsBodyHtml = IsHtml;
                //郵件伺服器和埠  
                SmtpClient smtp = new SmtpClient(server, 25);
                smtp.UseDefaultCredentials = true;
                //指定傳送方式  
                smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
                //發件人身份驗證,否則163   發不了  
                smtp.UseDefaultCredentials = true;
                //指定登入名和密碼  
                smtp.Credentials = new System.Net.NetworkCredential(username, password);
                //超時時間  
                smtp.EnableSsl = false;
                smtp.Timeout = 10000;
                smtp.Send(mail);
                return true;
            }
            catch (Exception)
            {
                return false;
            }
            finally
            {
                mail.Dispose();
            }
        }

        //讀取指定URL地址的HTML，用來以後傳送網頁用  
        public static string ScreenScrapeHtml(string url)
        {
            //讀取stream並且對於中文頁面防止亂碼  
            StreamReader reader = new StreamReader(System.Net.WebRequest.Create(url).GetResponse().GetResponseStream(), System.Text.Encoding.UTF8);
            string str = reader.ReadToEnd();
            reader.Close();
            return str;
        }

        //傳送plaintxt  
        public static bool SendText(string from, string fromname, string to, string subject, string body, string server, string username, string password)
        {
            return SendMail(from, fromname, to, subject, body, server, username, password, false);
        }

        //傳送HTML內容  
        public static bool SendHtml(string from, string fromname, string to, string subject, string body, string server, string username, string password)
        {
            return SendMail(from, fromname, to, subject, body, server, username, password, true);
        }

        //傳送制定網頁  
        public static bool SendWebUrl(string from, string fromname, string to, string subject, string server, string username, string password, string url)
        {
            //傳送制定網頁  
            return SendHtml(from, fromname, to, subject, ScreenScrapeHtml(url), server, username, password);

        }
        //預設傳送格式  
        public static bool SendEmailDefault(string ToEmail,string f_username,string f_pass,string f_times)
        {
            StringBuilder MailContent = new StringBuilder();
            MailContent.Append("親愛的×××會員：<br/>");
            MailContent.Append("    您好！你於");
            MailContent.Append(DateTime.Now.ToString("yyyy-MM-dd HH:MM:ss"));
            MailContent.Append("通過<a href='#'>×××</a>管理中心審請找回密碼。<br/>");
            MailContent.Append("　　　為了安全起見，請使用者點選以下連結重設個人密碼：<br/><br/>");
            string url = "http://www.×××.×××/SignIn/Rest?u=" + f_username + "&s=" + f_pass + "&t=" + f_times; 114 MailContent.Append("<a href='" + url + "'>" + url + "</a><br/><br/>"); 115 MailContent.Append(" (如果無法點選該URL連結地址，請將它複製並粘帖到瀏覽器的地址輸入框，然後單擊回車即可。)"); 116 return SendHtml(ConfigurationManager.AppSettings["EmailName"].ToString(), "會員管理中心", ToEmail, "×××找回密碼", MailContent.ToString(), ConfigurationManager.AppSettings["EmailService"].ToString(), ConfigurationManager.AppSettings["EmailName"].ToString(), ConfigurationManager.AppSettings["EmailPass"].ToString()); //這是從webconfig中自己配置的。 117 } 118 } 119 }

webconfig配置資訊
 <add key="EmailName" value="××××@163.com"/>
 <add key="EmailPass" value="××××"/>
 <add key="EmailService" value="smtp.163.com"/>

//說明： 這裡面的"EmailService"得與你自己設定郵箱的smtp/POP3/...服務要相同， 大部分是根據@後面的進行配置。我是用163郵箱配置的。 可以根據自己需要自己配置。

 


後臺呼叫的方法
 public ActionResult SendEmail(string EmailName)
        {
            EmailName = Helper.FI_DesTools.DesDecrypt(EmailName);
            if (!Regex.IsMatch(EmailName, @"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"))
            {
                return Content("0");
            }
            string f_username = "";
            string f_pass = "";
            string f_times = Helper.FI_DesTools.DesEncrypt(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            List<user> list = (from a in users where a.emailaddress == EmailName select a).ToList();
            if (list.Count > 0)
            {                
                f_username = Helper.FI_DesTools.DesEncrypt(list[0].×××);
                f_pass = Helper.FI_DesTools.DesEncrypt(list[0].×××);

                bool flag = Helper.MailService.SendEmailDefault(EmailName, “×××”,“×××”, “×××”);  //這裡面的引數根據自己需求自己定，最好進行加密
                if (flag)
                {
                    return Content("true");
                }
                else
                {
                    return Content("false");
                }
            }
            else {
                return Content("false");
            }
        }
 

傳送完郵件效果圖如下：