.Net 邮件发送帮助类

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1：在config文件中配置一下

<?xml version="1.0" encoding="utf-8" ?><configuration>  <appSettings>    <!-- Smtp 服务器 -->    <add key="SmtpHost" value="smtp.qq.com" />    <!-- Smtp 服务器端口 -->    <add key="SmtpPort" value="25" />    <!--发送者 Email 地址-->    <add key="FromEmailAddress" value="xx@qq.com" />    <!--发送者 Email 密码-->    <add key="FormEmailPassword" value="??????" />  </appSettings></configuration>

2：帮助类代码

using System;using System.Collections.Generic;using System.Configuration;using System.Linq;using System.Net;using System.Net.Mail;using System.Text;namespace ConsoleApplication1{    /// <summary>    /// Author      : yenange    /// Date        : 2014-02-26    /// Description : 邮件发送辅助类    /// </summary>    public class EmailHelper    {        #region [ 属性(发送Email相关) ]        private string _SmtpHost = string.Empty;        private int _SmtpPort = -1;        private string _FromEmailAddress = string.Empty;        private string _FormEmailPassword = string.Empty;        /// <summary>        /// smtp 服务器         /// </summary>        public string SmtpHost        {            get            {                if (string.IsNullOrEmpty(_SmtpHost))                {                    _SmtpHost = ConfigurationManager.AppSettings["SmtpHost"];                }                return _SmtpHost;            }        }        /// <summary>        /// smtp 服务器端口  默认为25        /// </summary>        public int SmtpPort        {            get            {                if (_SmtpPort == -1)                {                    if (!int.TryParse(ConfigurationManager.AppSettings["SmtpPort"], out _SmtpPort))                    {                        _SmtpPort = 25;                    }                }                return _SmtpPort;            }        }        /// <summary>        /// 发送者 Eamil 地址        /// </summary>        public string FromEmailAddress        {            get            {                if (string.IsNullOrEmpty(_FromEmailAddress))                {                    _FromEmailAddress = ConfigurationManager.AppSettings["FromEmailAddress"];                }                return _FromEmailAddress;            }        }        /// <summary>        /// 发送者 Eamil 密码        /// </summary>        public string FormEmailPassword        {            get            {                if (string.IsNullOrEmpty(_FormEmailPassword))                {                    _FormEmailPassword = ConfigurationManager.AppSettings["FormEmailPassword"];                }                return _FormEmailPassword;            }        }        #endregion        #region [ 属性(邮件相关) ]        /// <summary>        /// 收件人 Email 列表，多个邮件地址之间用 半角逗号 分开        /// </summary>        public string ToList { get; set; }        /// <summary>        /// 邮件的抄送者，支持群发，多个邮件地址之间用 半角逗号 分开        /// </summary>        public string CCList { get; set; }        /// <summary>        /// 邮件的密送者，支持群发，多个邮件地址之间用 半角逗号 分开        /// </summary>        public string BccList { get; set; }        /// <summary>        /// 邮件标题        /// </summary>        public string Subject { get; set; }        /// <summary>        /// 邮件正文        /// </summary>        public string Body { get; set; }        private bool _IsBodyHtml = true;        /// <summary>        /// 邮件正文是否为Html格式        /// </summary>        public bool IsBodyHtml        {            get { return _IsBodyHtml; }            set { _IsBodyHtml = value; }        }        /// <summary>        /// 附件列表        /// </summary>        public List<Attachment> AttachmentList { get; set; }        #endregion        #region [ 构造函数 ]        /// <summary>        /// 构造函数 (body默认为html格式)        /// </summary>        /// <param name="toList">收件人列表</param>        /// <param name="subject">邮件标题</param>        /// <param name="body">邮件正文</param>        public EmailHelper(string toList, string subject, string body)        {            this.ToList = toList;            this.Subject = subject;            this.Body = body;        }        /// <summary>        /// 构造函数        /// </summary>        /// <param name="toList">收件人列表</param>        /// <param name="subject">邮件标题</param>        /// <param name="isBodyHtml">邮件正文是否为Html格式</param>        /// <param name="body">邮件正文</param>        public EmailHelper(string toList, string subject, bool isBodyHtml, string body)        {            this.ToList = toList;            this.Subject = subject;            this.IsBodyHtml = isBodyHtml;            this.Body = body;        }        /// <summary>        /// 构造函数        /// </summary>        /// <param name="toList">收件人列表</param>        /// <param name="ccList">抄送人列表</param>        /// <param name="bccList">密送人列表</param>        /// <param name="subject">邮件标题</param>        /// <param name="isBodyHtml">邮件正文是否为Html格式</param>        /// <param name="body">邮件正文</param>        public EmailHelper(string toList, string ccList, string bccList, string subject, bool isBodyHtml, string body)        {            this.ToList = toList;            this.CCList = ccList;            this.BccList = bccList;            this.Subject = subject;            this.IsBodyHtml = isBodyHtml;            this.Body = body;        }        /// <summary>        /// 构造函数        /// </summary>        /// <param name="toList">收件人列表</param>        /// <param name="ccList">抄送人列表</param>        /// <param name="bccList">密送人列表</param>        /// <param name="subject">邮件标题</param>        /// <param name="isBodyHtml">邮件正文是否为Html格式</param>        /// <param name="body">邮件正文</param>        /// <param name="attachmentList">附件列表</param>        public EmailHelper(string toList, string ccList, string bccList, string subject, bool isBodyHtml, string body, List<Attachment> attachmentList)        {            this.ToList = toList;            this.CCList = ccList;            this.BccList = bccList;            this.Subject = subject;            this.IsBodyHtml = isBodyHtml;            this.Body = body;            this.AttachmentList = attachmentList;        }        #endregion        #region [ 发送邮件 ]        /// <summary>        /// 发送邮件        /// </summary>        /// <returns></returns>        public void Send()        {            SmtpClient smtp = new SmtpClient();                 //实例化一个SmtpClient            smtp.DeliveryMethod = SmtpDeliveryMethod.Network;   //将smtp的出站方式设为 Network            smtp.EnableSsl = false;                             //smtp服务器是否启用SSL加密            smtp.Host = this.SmtpHost;                          //指定 smtp 服务器地址            smtp.Port = this.SmtpPort;                          //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.UseDefaultCredentials = true;                  //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.Credentials = new NetworkCredential(this.FromEmailAddress, this.FormEmailPassword);    //如果需要认证，则用下面的方式            MailMessage mm = new MailMessage(); //实例化一个邮件类            mm.Priority = MailPriority.Normal; //邮件的优先级，分为 Low, Normal, High，通常用 Normal即可            mm.From = new MailAddress(this.FromEmailAddress, "管理员", Encoding.GetEncoding(936));            //收件人            if (!string.IsNullOrEmpty(this.ToList))                mm.To.Add(this.ToList);            //抄送人            if (!string.IsNullOrEmpty(this.CCList))                mm.CC.Add(this.CCList);            //密送人            if (!string.IsNullOrEmpty(this.BccList))                mm.Bcc.Add(this.BccList);            mm.Subject = this.Subject;                      //邮件标题            mm.SubjectEncoding = Encoding.GetEncoding(936); //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。            mm.IsBodyHtml = this.IsBodyHtml;                //邮件正文是否是HTML格式            mm.BodyEncoding = Encoding.GetEncoding(936);    //邮件正文的编码， 设置不正确， 接收者会收到乱码            mm.Body = this.Body;                            //邮件正文            //邮件附件            if (this.AttachmentList != null && this.AttachmentList.Count > 0)            {                foreach (Attachment attachment in this.AttachmentList)                {                    mm.Attachments.Add(attachment);                }            }            //发送邮件，如果不返回异常， 则大功告成了。            smtp.Send(mm);        }        #endregion    }}

3：调用实例：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.Net.Mail;using System.Configuration;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {            try         {                EmailHelper email = new EmailHelper("xxx@qq.com,xxx@qq.com", "测试邮件2", "<html><body><div style='color:red;'>测试内容</div></body></html>");                email.Send();                Console.WriteLine("发送成功！");        }        catch (Exception ex)        {                Console.WriteLine("发送失败！失败原因：");                Console.WriteLine(ex.Message);        }            Console.Read();        }    }//end of class Program}//end of namespace

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