发送及接收邮件

导言

最近在做一个项目时用到了发送邮件及接收邮件。空闲时把他总结下来、希望能帮助其他的人。

实现

发送邮件我们使用的是SMTP协议、接收邮件使用的是POP3协议，不废话了直接上代码：

发送邮件:

namespace KylinEmailCore
{
    /// 

    /// 抽象方法
    /// 
    public abstract class PushEamilBase
    {
        /// 

        /// 服务器 Smtp 服务器
        /// 
        public virtual string smtpService { get; set; }
        /// 

        /// 发送邮箱
        /// 
        public virtual string sendEmail { get; set; }

        /// 

        /// 显示名称
        /// 
        public virtual string displayName { get; set; }
        /// 

        /// 发送密码
        /// 
        public virtual string sendpwd { get; set; }
        /// 

        /// 端口
        /// 
        public virtual int sendport { get; set; }

        /// 

        /// 是否使用ssl加密
        /// 
        public virtual bool sendssl { get; set; }


        //确定smtp服务器地址 实例化一个Smtp客户端
        SmtpClient smtpclient = null;//实例化smtp服务器
        /// 

        /// 构造函数注入必要的参数
        /// 
        protected PushEamilBase()
        {
            smtpService = "smtp.xxxxx.com"; 默认的Smtp服务
            sendEmail = "xxxxx";///发送邮箱
            sendpwd = "xxxx";//密码
            sendport = 25;
            displayName = "显示名称";//Kylin displayName 就是显示的Kylin
            sendssl = false;
            this.smtpclient = new SmtpClient();
        }


        //没有采用方式
        public virtual EmailSendBackDto SendEmail(EmailPushDto emailPushDto)
        {
            EmailSendBackDto emailSendBackDto = new EmailSendBackDto();
            smtpclient.Host = smtpService;
            smtpclient.Port = sendport;
            MailMessage mailMessage = new MailMessage();
            mailMessage.From = new MailAddress(sendEmail, displayName);
            //主送人
            if (emailPushDto.strReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strReceiver.Count; i++)
                {
                    if (emailPushDto.strReceiver[i] != "")
                        mailMessage.To.Add(emailPushDto.strReceiver[i]);
                }
            }
            //抄送人
            if (emailPushDto.strCReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strCReceiver.Count; i++)
                {
                    if (emailPushDto.strCReceiver[i] != "")
                        mailMessage.CC.Add(emailPushDto.strCReceiver[i]);
                }
            }

            mailMessage.Subject = emailPushDto.strSubject;//发送邮件主题
            mailMessage.SubjectEncoding = System.Text.Encoding.UTF8;

            mailMessage.Body = emailPushDto.strContent;//发送邮件正文 

            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
            //附件
            if (emailPushDto.AttachFile != null)
            {
                foreach (string key in emailPushDto.AttachFile.Keys)
                {
                    Attachment file = new Attachment(emailPushDto.AttachFile[key]);
                    file.Name = key;
                    mailMessage.Attachments.Add(file);
                }
            }
            //邮件发送方式  通过网络发送到smtp服务器
            smtpclient.DeliveryMethod = SmtpDeliveryMethod.Network;

            //如果服务器支持安全连接，则将安全连接设为true
            smtpclient.EnableSsl = sendssl;
            try
            {
                //是否使用默认凭据，若为false，则使用自定义的证书，就是下面的networkCredential实例对象
                smtpclient.UseDefaultCredentials = false;
                //指定邮箱账号和密码,需要注意的是，这个密码是你在QQ邮箱设置里开启服务的时候给你的那个授权码
                NetworkCredential networkCredential = new NetworkCredential(sendEmail, sendpwd);
                smtpclient.Credentials = networkCredential;
                //发送邮件
                //LogManager.WriteLog("SAI发送邮件:" + mailMessage.ToJson());
                smtpclient.Send(mailMessage);
                emailSendBackDto.IsSuccess = true;
                // to do  发送成功

            }
            catch (System.Net.Mail.SmtpException ex)
            {
                // LogManager.WriteLog("SAI发送邮箱提示错误:" + ex.Message);
                emailSendBackDto.IsSuccess = false;
                emailSendBackDto.Msg = ex.Message;
                // to do  发送失败
            }
            return emailSendBackDto;
        }

        //采用html发送方式
        public virtual EmailSendBackDto SendHtmlEmail(EmailPushDto emailPushDto)
        {
            EmailSendBackDto emailSendBackDto = new EmailSendBackDto();
            smtpclient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式   
            //如果服务器支持安全连接，则将安全连接设为true
            smtpclient.EnableSsl = sendssl;
            smtpclient.Host = smtpService;//邮件服务器
            smtpclient.UseDefaultCredentials = true;
            smtpclient.Credentials = new NetworkCredential(sendEmail, sendpwd);//用户名、密码 
            MailMessage mailMessage = new MailMessage();
            mailMessage.From = new MailAddress(sendEmail, displayName);
            if (emailPushDto.strReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strReceiver.Count; i++)
                {
                    mailMessage.To.Add(emailPushDto.strReceiver[i]);
                }
            }
            if (emailPushDto.strCReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strCReceiver.Count; i++)
                {
                    mailMessage.CC.Add(emailPushDto.strCReceiver[i]);
                }
            }
            mailMessage.Subject = emailPushDto.strSubject;//邮件标题   


            mailMessage.Body = emailPushDto.strContent;//发送邮件正文 

            //mailMessage.Body = emailPushDto.strContent;//邮件内容   
            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码   
            mailMessage.IsBodyHtml = true;//是否是HTML邮件   
            mailMessage.Priority = MailPriority.High;//邮件优先级 
            //附件
            if (emailPushDto.AttachFile != null)
            {
                foreach (string key in emailPushDto.AttachFile.Keys)
                {
                    Attachment file = new Attachment(emailPushDto.AttachFile[key]);
                    file.Name = key;
                    mailMessage.Attachments.Add(file);
                }
            }
            try
            {
                smtpclient.Send(mailMessage);
                emailSendBackDto.IsSuccess = true;
            }
            catch (System.Net.Mail.SmtpException ex)
            {
                emailSendBackDto.IsSuccess = true;
                emailSendBackDto.Msg = ex.Message;
            }
            return emailSendBackDto;
        }


    }
}

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接收邮件:

namespace KylinEmailCore
{

    /// 

    /// 接收邮件
    /// 
    public class ReveiveEamilBase
    {
        /// 

        /// 存在本地地址
        /// 
        public virtual string localfile { get; set; }
        /// 

        /// 服务器 Smtp 服务器
        /// 
        public virtual string smtpService { get; set; }
        /// 

        /// 发送邮箱
        /// 
        public virtual string sendEmail { get; set; }
        /// 

        /// 发送密码
        /// 
        public virtual string sendpwd { get; set; }
        /// 

        /// 端口
        /// 
        public virtual int sendport { get; set; }

        /// 

        /// 是否使用ssl加密
        /// 
        public virtual bool sendssl { get; set; }

        //实例化对象
        Pop3Client pop3;
        public ReveiveEamilBase()
        {
            smtpService = "pop.qiye.aliyun.com"; //"smtp.mxhichina.com.cn";//默认的Smtp服务
            sendEmail = "sgdsrm@cetccq.com.cn";// "cetccq_ic@vip.163.com";//发送邮箱
            sendpwd = "Sgd_Srm_12";//密码
            sendport = 110;//端口
            sendssl = false;
            localfile = "D:\\localfile";
            pop3 = new Pop3Client();
        }
        /// 

        /// 接受邮件 Openpop
        /// 邮件接收：.NET中没有POP3邮件接收的类，邮件的内容和格式比复杂，
        /// 手动写代码进行解析很麻烦，也容易出错，开发中我们可以借助第三方插件来实现
        /// OpenPOP.NET插件的地址：http://sourceforge.net/projects/hpop/
        /// 
        /// 
        public virtual List ReceiveEmail()
        {
            List reveiveEamilBackDtos = new List();
            try
            {
                //链接到邮件服务器
                pop3.Connect(smtpService, sendport, sendssl);
                //身份验证
                pop3.Authenticate(sendEmail, sendpwd);
                //读邮件列表
                //1.获取邮件的个数
                int count = pop3.GetMessageCount();
                //2.遍历显示出来
                for (int i = 1; i <= count; i++)
                {
                    Message msg = pop3.GetMessage(i);
                    string FromAddress = msg.Headers.From.Address;//发送者的邮箱地址
                    string FromDisplayName = msg.Headers.From.DisplayName;//发送者的名子
                    DateTime DateSent = msg.Headers.DateSent;//邮件的发送时间
                    string Subject = msg.Headers.Subject;//邮件的主题
                                                         //获取正文内容，其中包括\n\r这些换行符
                    string Body = String.Empty;
                    try
                    {
                        Body = msg.FindFirstPlainTextVersion().GetBodyAsText();
                    }
                    catch (Exception ex)
                    {
                    }

                    //获取邮件html内容
                    //OpenPop.Mime.MessagePart htmlMessage = msg.FindFirstHtmlVersion();
                    //string htmlText = htmlMessage.GetBodyAsText();
                    //只要有附件才添加到集合
                    List messageParts = msg.FindAllAttachments();
                    if (messageParts != null)
                    {
                        if (messageParts.Count > 0)
                        {
                            ReveiveEamilBackDto reveiveEamilBackDto = new ReveiveEamilBackDto();
                            reveiveEamilBackDto.FromAddress = FromAddress;//发送者的邮箱
                            reveiveEamilBackDto.FromDisplayName = FromDisplayName;//发送者的名称
                            reveiveEamilBackDto.BodyAsText = Body;//文本
                            reveiveEamilBackDto.Subject = Subject;//title
                            reveiveEamilBackDto.DateSent = DateSent;//发送日期

                            //附件
                            reveiveEamilBackDto.fileLists = new List();

                            foreach (MessagePart item in messageParts)
                            {
                                FileList fileList = new FileList();
                                //判断文件是否存在，不存在则创建的存在
                                string sPath = Path.Combine(localfile, "File");
                                if (!System.IO.Directory.Exists(sPath))
                                {
                                    //创建该文件
                                    System.IO.Directory.CreateDirectory(sPath);
                                }
                                FileInfo fileInfo = new FileInfo(sPath + "\\" + item.FileName);
                                //保存附件
                                item.Save(fileInfo);
                                //添加附件
                                fileList.DownDate = DateTime.Now;
                                fileList.FileName = item.FileName;
                                fileList.FilePath = fileInfo.FullName;
                                reveiveEamilBackDto.fileLists.Add(fileList);
                            }
                            reveiveEamilBackDtos.Add(reveiveEamilBackDto);
                        }
                    }
                    //暂时不需要删除 在测试阶段
                    pop3.DeleteMessage(i); //删除邮件 
                }
                //断开链接
                pop3.Disconnect();
            }
            catch (Exception ex)
            {

            }
            return reveiveEamilBackDtos;
        }
    }
}
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源码：

https://github.com/lszai90/SendAndReceiveEmail.git

总结

日行一结，既能利于别人,也能利于己。## 导言

最近在做一个项目时用到了发送邮件及接收邮件。空闲时把他总结下来、希望能帮助其他的人。

实现

发送邮件我们使用的是SMTP协议、接收邮件使用的是POP3协议，不废话了直接上代码：

发送邮件:

namespace KylinEmailCore
{
    /// 

    /// 抽象方法
    /// 
    public abstract class PushEamilBase
    {
        /// 

        /// 服务器 Smtp 服务器
        /// 
        public virtual string smtpService { get; set; }
        /// 

        /// 发送邮箱
        /// 
        public virtual string sendEmail { get; set; }

        /// 

        /// 显示名称
        /// 
        public virtual string displayName { get; set; }
        /// 

        /// 发送密码
        /// 
        public virtual string sendpwd { get; set; }
        /// 

        /// 端口
        /// 
        public virtual int sendport { get; set; }

        /// 

        /// 是否使用ssl加密
        /// 
        public virtual bool sendssl { get; set; }


        //确定smtp服务器地址 实例化一个Smtp客户端
        SmtpClient smtpclient = null;//实例化smtp服务器
        /// 

        /// 构造函数注入必要的参数
        /// 
        protected PushEamilBase()
        {
            smtpService = "smtp.xxxxx.com"; 默认的Smtp服务
            sendEmail = "xxxxx";///发送邮箱
            sendpwd = "xxxx";//密码
            sendport = 25;
            displayName = "显示名称";//Kylin displayName 就是显示的Kylin
            sendssl = false;
            this.smtpclient = new SmtpClient();
        }


        //没有采用方式
        public virtual EmailSendBackDto SendEmail(EmailPushDto emailPushDto)
        {
            EmailSendBackDto emailSendBackDto = new EmailSendBackDto();
            smtpclient.Host = smtpService;
            smtpclient.Port = sendport;
            MailMessage mailMessage = new MailMessage();
            mailMessage.From = new MailAddress(sendEmail, displayName);
            //主送人
            if (emailPushDto.strReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strReceiver.Count; i++)
                {
                    if (emailPushDto.strReceiver[i] != "")
                        mailMessage.To.Add(emailPushDto.strReceiver[i]);
                }
            }
            //抄送人
            if (emailPushDto.strCReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strCReceiver.Count; i++)
                {
                    if (emailPushDto.strCReceiver[i] != "")
                        mailMessage.CC.Add(emailPushDto.strCReceiver[i]);
                }
            }

            mailMessage.Subject = emailPushDto.strSubject;//发送邮件主题
            mailMessage.SubjectEncoding = System.Text.Encoding.UTF8;

            mailMessage.Body = emailPushDto.strContent;//发送邮件正文 

            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
            //附件
            if (emailPushDto.AttachFile != null)
            {
                foreach (string key in emailPushDto.AttachFile.Keys)
                {
                    Attachment file = new Attachment(emailPushDto.AttachFile[key]);
                    file.Name = key;
                    mailMessage.Attachments.Add(file);
                }
            }
            //邮件发送方式  通过网络发送到smtp服务器
            smtpclient.DeliveryMethod = SmtpDeliveryMethod.Network;

            //如果服务器支持安全连接，则将安全连接设为true
            smtpclient.EnableSsl = sendssl;
            try
            {
                //是否使用默认凭据，若为false，则使用自定义的证书，就是下面的networkCredential实例对象
                smtpclient.UseDefaultCredentials = false;
                //指定邮箱账号和密码,需要注意的是，这个密码是你在QQ邮箱设置里开启服务的时候给你的那个授权码
                NetworkCredential networkCredential = new NetworkCredential(sendEmail, sendpwd);
                smtpclient.Credentials = networkCredential;
                //发送邮件
                //LogManager.WriteLog("SAI发送邮件:" + mailMessage.ToJson());
                smtpclient.Send(mailMessage);
                emailSendBackDto.IsSuccess = true;
                // to do  发送成功

            }
            catch (System.Net.Mail.SmtpException ex)
            {
                // LogManager.WriteLog("SAI发送邮箱提示错误:" + ex.Message);
                emailSendBackDto.IsSuccess = false;
                emailSendBackDto.Msg = ex.Message;
                // to do  发送失败
            }
            return emailSendBackDto;
        }

        //采用html发送方式
        public virtual EmailSendBackDto SendHtmlEmail(EmailPushDto emailPushDto)
        {
            EmailSendBackDto emailSendBackDto = new EmailSendBackDto();
            smtpclient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式   
            //如果服务器支持安全连接，则将安全连接设为true
            smtpclient.EnableSsl = sendssl;
            smtpclient.Host = smtpService;//邮件服务器
            smtpclient.UseDefaultCredentials = true;
            smtpclient.Credentials = new NetworkCredential(sendEmail, sendpwd);//用户名、密码 
            MailMessage mailMessage = new MailMessage();
            mailMessage.From = new MailAddress(sendEmail, displayName);
            if (emailPushDto.strReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strReceiver.Count; i++)
                {
                    mailMessage.To.Add(emailPushDto.strReceiver[i]);
                }
            }
            if (emailPushDto.strCReceiver != null)
            {
                for (int i = 0; i < emailPushDto.strCReceiver.Count; i++)
                {
                    mailMessage.CC.Add(emailPushDto.strCReceiver[i]);
                }
            }
            mailMessage.Subject = emailPushDto.strSubject;//邮件标题   


            mailMessage.Body = emailPushDto.strContent;//发送邮件正文 

            //mailMessage.Body = emailPushDto.strContent;//邮件内容   
            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码   
            mailMessage.IsBodyHtml = true;//是否是HTML邮件   
            mailMessage.Priority = MailPriority.High;//邮件优先级 
            //附件
            if (emailPushDto.AttachFile != null)
            {
                foreach (string key in emailPushDto.AttachFile.Keys)
                {
                    Attachment file = new Attachment(emailPushDto.AttachFile[key]);
                    file.Name = key;
                    mailMessage.Attachments.Add(file);
                }
            }
            try
            {
                smtpclient.Send(mailMessage);
                emailSendBackDto.IsSuccess = true;
            }
            catch (System.Net.Mail.SmtpException ex)
            {
                emailSendBackDto.IsSuccess = true;
                emailSendBackDto.Msg = ex.Message;
            }
            return emailSendBackDto;
        }


    }
}

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接收邮件:

namespace KylinEmailCore
{

    /// 

    /// 接收邮件
    /// 
    public class ReveiveEamilBase
    {
        /// 

        /// 存在本地地址
        /// 
        public virtual string localfile { get; set; }
        /// 

        /// 服务器 Smtp 服务器
        /// 
        public virtual string smtpService { get; set; }
        /// 

        /// 发送邮箱
        /// 
        public virtual string sendEmail { get; set; }
        /// 

        /// 发送密码
        /// 
        public virtual string sendpwd { get; set; }
        /// 

        /// 端口
        /// 
        public virtual int sendport { get; set; }

        /// 

        /// 是否使用ssl加密
        /// 
        public virtual bool sendssl { get; set; }

        //实例化对象
        Pop3Client pop3;
        public ReveiveEamilBase()
        {
            smtpService = "pop.qiye.aliyun.com"; //"smtp.mxhichina.com.cn";//默认的Smtp服务
            sendEmail = "sgdsrm@cetccq.com.cn";// "cetccq_ic@vip.163.com";//发送邮箱
            sendpwd = "Sgd_Srm_12";//密码
            sendport = 110;//端口
            sendssl = false;
            localfile = "D:\\localfile";
            pop3 = new Pop3Client();
        }
        /// 

        /// 接受邮件 Openpop
        /// 邮件接收：.NET中没有POP3邮件接收的类，邮件的内容和格式比复杂，
        /// 手动写代码进行解析很麻烦，也容易出错，开发中我们可以借助第三方插件来实现
        /// OpenPOP.NET插件的地址：http://sourceforge.net/projects/hpop/
        /// 
        /// 
        public virtual List ReceiveEmail()
        {
            List reveiveEamilBackDtos = new List();
            try
            {
                //链接到邮件服务器
                pop3.Connect(smtpService, sendport, sendssl);
                //身份验证
                pop3.Authenticate(sendEmail, sendpwd);
                //读邮件列表
                //1.获取邮件的个数
                int count = pop3.GetMessageCount();
                //2.遍历显示出来
                for (int i = 1; i <= count; i++)
                {
                    Message msg = pop3.GetMessage(i);
                    string FromAddress = msg.Headers.From.Address;//发送者的邮箱地址
                    string FromDisplayName = msg.Headers.From.DisplayName;//发送者的名子
                    DateTime DateSent = msg.Headers.DateSent;//邮件的发送时间
                    string Subject = msg.Headers.Subject;//邮件的主题
                                                         //获取正文内容，其中包括\n\r这些换行符
                    string Body = String.Empty;
                    try
                    {
                        Body = msg.FindFirstPlainTextVersion().GetBodyAsText();
                    }
                    catch (Exception ex)
                    {
                    }

                    //获取邮件html内容
                    //OpenPop.Mime.MessagePart htmlMessage = msg.FindFirstHtmlVersion();
                    //string htmlText = htmlMessage.GetBodyAsText();
                    //只要有附件才添加到集合
                    List messageParts = msg.FindAllAttachments();
                    if (messageParts != null)
                    {
                        if (messageParts.Count > 0)
                        {
                            ReveiveEamilBackDto reveiveEamilBackDto = new ReveiveEamilBackDto();
                            reveiveEamilBackDto.FromAddress = FromAddress;//发送者的邮箱
                            reveiveEamilBackDto.FromDisplayName = FromDisplayName;//发送者的名称
                            reveiveEamilBackDto.BodyAsText = Body;//文本
                            reveiveEamilBackDto.Subject = Subject;//title
                            reveiveEamilBackDto.DateSent = DateSent;//发送日期

                            //附件
                            reveiveEamilBackDto.fileLists = new List();

                            foreach (MessagePart item in messageParts)
                            {
                                FileList fileList = new FileList();
                                //判断文件是否存在，不存在则创建的存在
                                string sPath = Path.Combine(localfile, "File");
                                if (!System.IO.Directory.Exists(sPath))
                                {
                                    //创建该文件
                                    System.IO.Directory.CreateDirectory(sPath);
                                }
                                FileInfo fileInfo = new FileInfo(sPath + "\\" + item.FileName);
                                //保存附件
                                item.Save(fileInfo);
                                //添加附件
                                fileList.DownDate = DateTime.Now;
                                fileList.FileName = item.FileName;
                                fileList.FilePath = fileInfo.FullName;
                                reveiveEamilBackDto.fileLists.Add(fileList);
                            }
                            reveiveEamilBackDtos.Add(reveiveEamilBackDto);
                        }
                    }
                    //暂时不需要删除 在测试阶段
                    pop3.DeleteMessage(i); //删除邮件 
                }
                //断开链接
                pop3.Disconnect();
            }
            catch (Exception ex)
            {

            }
            return reveiveEamilBackDtos;
        }
    }
}
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源码：

https://github.com/lszai90/SendAndReceiveEmail.git

博客地址:
https://lszai90.github.io/

总结

日行一结，既能利于别人,也能利于己。