【C#】发送邮件含25及465端口

写在最前面：

　　刚开始接触发送邮件是25端口的方式，但是在实际使用中发现 我在本地调试正常，放到阿里云服务器就没有响应。

       再确定本地替换服务器文件没有问题的情况下，再次百度才得知各大云厂商默认就封了25端口，如果需要发邮件要改用465端口发送。

465端口【此方法在阿里云服务器测试成功】：

　　使用时需引用System.Web　　

System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();
            try
            {
                mail.To = "111111111@qq.com";
                mail.From = "111111111111@163.com";
                mail.Subject = "关于公司春节放假的通知";
                mail.BodyFormat = System.Web.Mail.MailFormat.Html;
                mail.Body = "哈哈哈哈哈";

                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //身份验证
                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", mail.From); //邮箱登录账号，这里跟前面的发送账号一样就行
                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "1111111111111"); //这个密码要注意：如果是一般账号，要用授权码；企业账号用登录密码
                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 465);//端口
                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true");//SSL加密
                System.Web.Mail.SmtpMail.SmtpServer = "smtp.163.com";    //企业账号用smtp.exmail.qq.com
                System.Web.Mail.SmtpMail.Send(mail);

                //邮件发送成功
                Console.Write("成功");
                Console.ReadKey();
            }
            catch (Exception ex)
            {
                //失败，错误信息：ex.Message;
                Console.WriteLine(ex.Message);
                Console.ReadKey();
            }

 

25端口：

EmailHelper类：

public class EmailHepler
    {
        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 EmailHepler(string server, string toMail, string fromMail, string subject, string emailBody, string username, string password, string port, bool sslEnable, bool pwdCheckEnable)
        {
            try
            {
                mMailMessage = new MailMessage();
                string[] arr = toMail.Split(';');
                for (int i = 0; i < arr.Length; i++)
                {
                    mMailMessage.To.Add(arr[i]);
                }
                //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>
        public void 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>
        public void 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());
            }
        }

 

具体发送：

try
            {
                //smtp.163.com
                string senderServerIp = "smtp.163.com"; 
                //"123.125.50.133";
                //smtp.gmail.com
                //string senderServerIp = "74.125.127.109";
                //smtp.qq.com
                //string senderServerIp = "58.251.149.147";
                //string senderServerIp = "smtp.sina.com";
                string toMailAddress = "1111111111@qq.com";
                string fromMailAddress = "111111111@163.com";
                string subjectInfo = "Test sending e_mail";
                string bodyInfo = "Hello Eric, This is my first testing e_mail";
                string mailUsername = "2000";
                string mailPassword = "AVGXXXXXXXXX"; //发送邮箱的授权码
                string mailPort = "25";
                //要发送的文件内容
                string attachPath = "E:\\123123.txt;E:\\haha.doc"; //E:\\123123.txt;E:\\haha.pdf
                EmailHepler email = new EmailHepler(senderServerIp, toMailAddress, fromMailAddress, subjectInfo, bodyInfo, mailUsername, mailPassword, mailPort, false, false);
                //添加附件  附件的路径集合，以分号分隔
                email.AddAttachments(attachPath);
                email.Send();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }

 

参考网址忘记了，如果原作者发现了记得提醒我加上转载的网址，感谢各位前行者！