.NET 发送邮件取回密码类

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Xml.Linq;
using System.Text;
using System.Net.Mail;
using System.Net;
using System.IO;

namespace Common
{
public class SendEmailHelper
{
/// <summary>
/// 发送邮件程序调用方法 SendMail("abc@126.com", "某某人", "cba@126.com", "你好", "我测试下邮件", "邮箱登录名", "邮箱密码", "smtp.126.com", true,);
/// </summary>
/// <param name="from">发送人邮件地址</param>
/// <param name="fromname">发送人显示名称</param>
/// <param name="to">发送给谁（邮件地址）</param>
/// <param name="subject">标题</param>
/// <param name="body">内容</param>
/// <param name="username">邮件登录名</param>
/// <param name="password">邮件密码</param>
/// <param name="server">邮件服务器 smtp服务器地址</param>
/// <param   name= "IsHtml "> 是否是HTML格式的邮件 </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)
{
//邮件发送类
MailMessage mail = new MailMessage();
try
{
//是谁发送的邮件
mail.From = new MailAddress(from, fromname);
//发送给谁
mail.To.Add(to);
//标题
mail.Subject = subject;
//内容编码
mail.BodyEncoding = Encoding.Default;
//发送优先级
mail.Priority = MailPriority.High;
//邮件内容
mail.Body = body;
//是否HTML形式发送
mail.IsBodyHtml = IsHtml;
//邮件服务器和端口
SmtpClient smtp = new SmtpClient(server, 25);
smtp.UseDefaultCredentials = true;
//指定发送方式
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
//发件人身份验证,否则163   发不了
smtp.UseDefaultCredentials = true;
//指定登录名和密码
smtp.Credentials = new System.Net.NetworkCredential(username, password);
//超时时间
smtp.EnableSsl = false;
smtp.Timeout = 10000;
smtp.Send(mail);
return true;
}
catch (Exception)
{
return false;
}
finally
{
mail.Dispose();
}
}

//读取指定URL地址的HTML，用来以后发送网页用
public static string ScreenScrapeHtml(string url)
{
//读取stream并且对于中文页面防止乱码
StreamReader reader = new StreamReader(System.Net.WebRequest.Create(url).GetResponse().GetResponseStream(), System.Text.Encoding.UTF8);
string str = reader.ReadToEnd();
reader.Close();
return str;
}

//发送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);
}

//发送HTML内容
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);
}

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

}
//默认发送格式
public static bool SendEmailDefault( string ToEmail, string memberid)
{
StringBuilder MailContent = new StringBuilder();
MailContent.Append("亲爱的爱湛师会员：<br/>");
MailContent.Append("    您好！你于");
MailContent.Append(DateTime.Now.ToLongTimeString());
MailContent.Append("通过<a href='#'>爱湛师</a>管理中心审请找回密码。<br/>");
MailContent.Append("    为了安全起见，请用户点击以下链接重设个人密码：<br/><br/>");
string url = "http://www.izhanshi.com?memberid=" + memberid + "&email=" + ToEmail;
MailContent.Append("<a href='" + url + "'>" + url + "</a><br/><br/>");
MailContent.Append("    (如果无法点击该URL链接地址，请将它复制并粘帖到浏览器的地址输入框，然后单击回车即可。)");
return SendHtml("jysXXXX@126.com", "会员管理中心", ToEmail, "爱湛师找回密码", MailContent.ToString(), "smtp.126.com", "jysXXXX@126.com", "*****");
}
}
}

//        接收邮箱返回数据并重置密码：

//    string  memeberid = "";//用来接收找回密码时返回的email地址,与会员编号
//        protected void Page_Load(object sender, EventArgs e)
//        {
//            if (Request.QueryString["email"] != null)
//            {
//                email = Request.QueryString["email"].ToString();
//            }
//            if (Request.QueryString["memberid"] != null)
//            {
//                memeberid = Request.QueryString["memberid"].ToString();
//                modelMember = bllMember.GetModel(long.Parse(memeberid));
//                modelMember.PassWord = TianDao.Common.DEncrypt.DESEncrypt.Encrypt("123456");
//                if (modelMember.Email == email)//验证邮箱地址是否为用户注册时候的邮箱地址
//                {
//                    bllMember.Update(modelMember);
//                    Response.Write("<script>alert('您的密码已重置，默认密码为123456,请尽快修改密码！');window.location.href='../login.aspx';</script>");
//                }
//            }
//            if (!IsPostBack)
//            {

//            }
//        }
//    }
//}