C# 发送邮件以及附件 - MilkeZhang 的网络笔记

最近想要新增了一个功能，便是验证邮箱以及将日记以邮件的形式保存起来。

这个功能对于网站本身而言是致命的，但是对于执着写日记的朋友而言，是友善的

以下是技术积累的笔记
使用C#开发发送邮件相关功能，代码来源于网络，个人照搬，但是做了极其细微的调整

    /// <summary>
    /// 发送邮件相关操作
    /// </summary>
    public class SendEmail
    {
        /// <summary>
        /// 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）
        /// </summary>
        private MailMessage mMailMessage;
        /// <summary>
        /// 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）
        /// </summary>
        private SmtpClient mSmtpClient;
        /// <summary>
        /// 发送邮件所用的端口号（htmp协议默认为25）
        /// </summary>
        private int mSenderPort;
        /// <summary>
        /// 发件箱的邮件服务器地址（IP形式或字符串形式均可）
        /// </summary>
        private string mSenderServerHost;
        /// <summary>
        /// 发件箱的密码
        /// </summary>
        private string mSenderPassword;
        /// <summary>
        /// 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）
        /// </summary>
        private string mSenderUsername;
        /// <summary>
        /// 是否对邮件内容进行socket层加密传输
        /// </summary>
        private bool mEnableSsl;
        /// <summary>
        /// 是否对发件人邮箱进行密码验证
        /// </summary>
        private bool mEnablePwdAuthentication;

        ///<summary>
        /// 构造函数
        ///</summary>
        ///<param name="Server">发件箱的邮件服务器地址</param>
        ///<param name="ToAddress">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="Email_Subject">邮件标题</param>
        ///<param name="Email_Message">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??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 SendEmail(string Server, string ToAddress, string FromMail, string Email_Subject,
            string Email_Message, string username, string password,
            string port, bool sslEnable = true, bool pwdCheckEnable = true)
        {
            try
            {
                mMailMessage = new MailMessage();
                mMailMessage.To.Add(ToAddress);
                mMailMessage.From = new MailAddress(FromMail);
                mMailMessage.Subject = Email_Subject;
                mMailMessage.Body = Email_Message;
                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 bool  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);
                }
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        ///<summary>
        /// 邮件的发送
        ///</summary>
        public bool Send()
        {
            try
            {
                if (mMailMessage == null)
                {return false;}
                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);
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }
    }

核心类文件，通过定义此类文件可以实现邮件发送功能

            try
            {
                string Server = "smtp.qq.com";
                string ToAddress = "milkezhang@qq.com";
                string FromMail = "dratk@foxmail.com";
                string Email_Subject = DateTime.Now.ToString();
                string Email_Message = "Hello milkezhang";
                string mailUsername = "dratk@foxmail.com";
                string mailPassword = "xxxxxxxxxxxx"; //发送邮箱的密码（）
                string mailPort = "587";
                string attachPath = "z://1.jpg";

                SendEmail email = new SendEmail(Server, ToAddress, FromMail, Email_Subject
                    , Email_Message, mailUsername, mailPassword, mailPort, true, true);
                email.AddAttachments(attachPath);
                return email.Send();
            }
            catch (Exception ex)
            {
                return false;
            }

同过上一段代码发送邮件