using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Net.Mail;using System.Configuration;using System.Net;using System.Reflection;using System.Text;namespace SendMailMessage.Uitls{      public class EMail    {        // 实例化一个邮件类        MailMessage _mailMessage = new MailMessage();        /// <summary>        /// 发件使用的邮箱地址        /// </summary>        private string _fromEmail = ConfigurationManager.AppSettings["EmailSender"].ToString();        /// <summary>        /// 发件邮箱地址密码        /// </summary>        private string _senderPassword = ConfigurationManager.AppSettings["EmailServer_Pwd"].ToString();        /// <summary>        /// 显示在邮件上的发件人名称        /// </summary>        private string _displayName = ConfigurationManager.AppSettings["EmailSenderName"].ToString();        /// <summary>        /// 发件邮箱使用的服务器        /// </summary>        private string _smtp = ConfigurationManager.AppSettings["EmailServer"].ToString();        /// <summary>        /// 邮件的接收者        /// </summary>        private string ToEmail { set; get; }        /// <summary>        /// 抄送        /// </summary>        private string CC { set; get; }        /// <summary>        /// 密送        /// </summary>        private string Bcc { set; get; }        /// <summary>        /// 邮件标题        /// </summary>        private string Subject { set; get; }        /// <summary>        /// 邮件正文        /// </summary>        private string Body { set; get; }        /// <summary>        /// 附件        /// </summary>        private string Attachments { set; get; }        public EMail(string toEmail,  string subject, string body)        {                       ToEmail = toEmail;            Subject = subject;            Body = body;        }        public EMail(string toEmail, string cc, string bcc, string subject, string body, string attachments)        {            CC = cc;            Bcc = bcc;            ToEmail = toEmail;            Subject = subject;            Body = body;            Attachments = attachments;        }        /// <summary>        /// 发送email        /// </summary>        /// <param name="toEmail">邮件的接收者，支持群发，多个地址之间用半角逗号分开</param>            /// <param name="subject">主题</param>        /// <param name="body">正文</param>            public static bool SendEmail(string toEmail, string subject, string body)        {            EMail email = new EMail(toEmail, subject, body);            return email.Send();        }                /// <summary>        /// 发送email        /// </summary>        /// <param name="toEmail">邮件的接收者，支持群发，多个地址之间用半角逗号分开</param>        /// <param name="cc">抄送，多个地址之间用半角逗号分开</param>        /// <param name="bcc">密送，多个地址之间用半角逗号分开</param>        /// <param name="subject">主题</param>        /// <param name="body">正文</param>        /// <param name="attachments">附件地址</param>        public static bool SendEmail(string toEmail, string cc, string bcc, string subject, string body, string attachments)        {            EMail email = new EMail(toEmail, cc, bcc, subject, body, attachments);            return email.Send();        }        /// <summary>        /// 邮件发送        /// </summary>        public bool Send()        {            Type type = typeof(SmtpClient);            SmtpClient _smtpClient = new SmtpClient();                       bool result = false;            try            {                // 将smtp的出站方式设为Network                _smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;                // smtp服务器是否启用SSL加密                _smtpClient.EnableSsl = false;                // 指定smtp服务器地址                _smtpClient.Host = _smtp;                // 指定smtp服务器的端口，默认是25，如果采用默认端口，可省去                //smtp.Port = 25;                             // 如果你的SMTP服务器不需要身份认证，则使用下面的方式，不过，目前基本没有不需要认证的了                //smtp.UseDefaultCredentials = true;                // 如果需要认证，则用下面的方式                _smtpClient.Credentials = new NetworkCredential(_fromEmail, _senderPassword);                // 邮件的优先级，分为Low、Normal、 High，通常用Normal即可                _mailMessage.Priority = MailPriority.High;                // 收件方看到的邮件来源；第一个参数是发信人邮件地址，第二参数是发信人显示的名称，第三个参数是第二个参数所使用的编码，如果指定不正确，则对方收到后显示乱码，936是简体中文的codepage值                _mailMessage.From = new MailAddress(_fromEmail, _displayName, Encoding.GetEncoding(936));                // ReplyTo 表示对方回复邮件时默认的接收地址，即：你用一个邮箱发信，但却用另一个来收信，后两个参数的意义，同From                _mailMessage.ReplyTo = new MailAddress(_fromEmail, _displayName, Encoding.GetEncoding(936));                // 邮件的接收者，支持群发，多个地址之间用半角逗号分开                _mailMessage.To.Add(ToEmail);                // 抄送                if (!string.IsNullOrEmpty(CC))                {                    _mailMessage.CC.Add(CC);                }                // 密送                if (!string.IsNullOrEmpty(Bcc))                {                    _mailMessage.Bcc.Add(Bcc);                }                // 邮件标题                _mailMessage.Subject = Subject;                // 这里非常重要，如果你的邮件标题包含中文，这里一定要指定，否则对方收到的极有可能是乱码                _mailMessage.SubjectEncoding = Encoding.GetEncoding(936);                // 邮件正文是否是HTML格式                _mailMessage.IsBodyHtml = true;                // 邮件正文的编码，设置不正确，接收者会收到乱码                _mailMessage.BodyEncoding = Encoding.GetEncoding(936);                // 邮件正文                _mailMessage.Body = Body;                // 附件                if (!string.IsNullOrEmpty(Attachments))                {                    string[] attachmentsArray = Attachments.Split(‘,‘);                    for (int i = 0; i < attachmentsArray.Length; i++)                    {                        _mailMessage.Attachments.Add(new Attachment(attachmentsArray[i]));                    }                }                // 发送邮件                _smtpClient.Send(_mailMessage);                result = true;            }            catch (Exception ex)            {                result = false;            }            return result;        }     }    }