• C#实现邮件发送的功能


     

     Ø  发送邮件所用的核心知识点

    •   微软封装好的MailMessage类:主要处理发送邮件的内容(如:收发人地址、标题、主体、图片等等)
    •   微软封装好的SmtpClient类:主要处理用smtp方式发送此邮件的配置信息(如:邮件服务器、发送端口号、验证方式等等)
    •   SmtpClient主要进行了三层的封装:Socket --> TcpClient --> SmtpClient

    Ø  具体代码请看如下所示:

     
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Net.Mail;
    using System.Net.Mime;
    using System.IO;
    using System.Timers;
    using System.Xml;

    namespace MyEmailTest
    {
       class Program
    {
         staticvoid Main(string[] args)
    {
           try
    {

            string senderServerIp = "123.125.50.133";
            string toMailAddress = "mingmingruyuedlut@163.com";
            string fromMailAddress = "mingmingruyuedlut@163.com";
            string subjectInfo = "Test sending e_mail";
            string bodyInfo = "Hello Eric, This is my first testing e_mail";
            string mailUsername = "mingmingruyuedlut";
            string mailPassword = ".........."; //发送邮箱的密码()
            string mailPort = "25";
            string attachPath = "E:\123123.txt; E:\haha.pdf";

    MyEmail email = new MyEmail(senderServerIp, toMailAddress, fromMailAddress, subjectInfo, bodyInfo, mailUsername, mailPassword, mailPort, false, false);
    email.AddAttachments(attachPath);
    email.Send();
    }
           catch (Exception ex)
    {
    Console.WriteLine(ex.ToString());
    }
    }
    }

    publicclass MyEmail
    {
          private MailMessage mMailMessage; //主要处理发送邮件的内容(如:收发人地址、标题、主体、图片等等)
          private SmtpClient mSmtpClient; //主要处理用smtp方式发送此邮件的配置信息(如:邮件服务器、发送端口号、验证方式等等)
          private int mSenderPort; //发送邮件所用的端口号(htmp协议默认为25)
          private string mSenderServerHost; //发件箱的邮件服务器地址(IP形式或字符串形式均可)
          private string mSenderPassword; //发件箱的密码
          private string mSenderUsername; //发件箱的用户名(即@符号前面的字符串,例如:hello@163.com,用户名为:hello)
          private bool mEnableSsl; //是否对邮件内容进行socket层加密传输
          private bool mEnablePwdAuthentication; //是否对发件人邮箱进行密码验证

    ///<summary>
    /// 构造函数
    ///</summary>
    ///<param name="server">发件箱的邮件服务器地址</param>
    ///<param name="toMail">收件人地址(可以是多个收件人,程序中是以“;"进行区分的)</param>
    ///<param name="fromMail">发件人地址</param>
    ///<param name="subject">邮件标题</param>
    ///<param name="emailBody">邮件内容(可以以html格式进行设计)</param>
    ///<param name="username">发件箱的用户名(即@符号前面的字符串,例如:hello@163.com,用户名为:hello)</param>
    ///<param name="password">发件人邮箱密码</param>
    ///<param name="port">发送邮件所用的端口号(htmp协议默认为25)</param>
    ///<param name="sslEnable">true表示对邮件内容进行socket层加密传输,false表示不加密</param>
    ///<param name="pwdCheckEnable">true表示对发件人邮箱进行密码验证,false表示不对发件人邮箱进行密码验证</param>
        public MyEmail(string server, string toMail, string fromMail, string subject, string emailBody, string username, string password, string port, bool sslEnable, bool pwdCheckEnable)
    {
          try
    {
    mMailMessage = new MailMessage();
    mMailMessage.To.Add(toMail);
    mMailMessage.From = new MailAddress(fromMail);
    mMailMessage.Subject = subject;
    mMailMessage.Body = emailBody;
    mMailMessage.IsBodyHtml = true;
    mMailMessage.BodyEncoding = System.Text.Encoding.UTF8;
    mMailMessage.Priority = MailPriority.Normal;

              this.mSenderServerHost = server;
              this.mSenderUsername = username;
              this.mSenderPassword = password;
              this.mSenderPort = Convert.ToInt32(port);
              this.mEnableSsl = sslEnable;
              this.mEnablePwdAuthentication = pwdCheckEnable;
    }
            catch (Exception ex)
    {
    Console.WriteLine(ex.ToString());
    }
    }

    ///<summary>
    /// 添加附件
    ///</summary>
    ///<param name="attachmentsPath">附件的路径集合,以分号分隔</param>
    publicvoid AddAttachments(string attachmentsPath)
    {
          try
    {
            string[] path = attachmentsPath.Split(';'); //以什么符号分隔可以自定义
    Attachment data;
    ContentDisposition disposition;
              for (int i = 0; i < path.Length; i++)
    {
    data = new Attachment(path[i], MediaTypeNames.Application.Octet);
    disposition = data.ContentDisposition;
    disposition.CreationDate = File.GetCreationTime(path[i]);
    disposition.ModificationDate = File.GetLastWriteTime(path[i]);
    disposition.ReadDate = File.GetLastAccessTime(path[i]);
    mMailMessage.Attachments.Add(data);
    }
    }
            catch (Exception ex)
    {
    Console.WriteLine(ex.ToString());
    }
    }

    ///<summary>
    /// 邮件的发送
    ///</summary>
          publicvoid Send()
    {
           try
    {
              if (mMailMessage != null)
    {
    mSmtpClient = new SmtpClient();
                //mSmtpClient.Host = "smtp." + mMailMessage.From.Host;
    mSmtpClient.Host = this.mSenderServerHost;
    mSmtpClient.Port = this.mSenderPort;
    mSmtpClient.UseDefaultCredentials = false;
    mSmtpClient.EnableSsl = this.mEnableSsl;
                if (this.mEnablePwdAuthentication)
    {
    System.Net.NetworkCredential nc = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
                  //mSmtpClient.Credentials = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
                  //NTLM: Secure Password Authentication in Microsoft Outlook Express
    mSmtpClient.Credentials = nc.GetCredential(mSmtpClient.Host, mSmtpClient.Port, "NTLM");
    }
                else
    {
    mSmtpClient.Credentials = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
    }
    mSmtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
    mSmtpClient.Send(mMailMessage);
    }
    }
            catch (Exception ex)
    {
    Console.WriteLine(ex.ToString());
    }
    }
    }
    }
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  • 原文地址:https://www.cnblogs.com/liaocheng/p/4243700.html
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