OpenPop.net收取邮件基本操作

public static void ReadPop3()
        {
            using (Pop3Client client = new Pop3Client())
            {
                if (client.Connected)
                {
                    client.Disconnect();
                }

                // 连接到服务器，false代表不用ssl
                client.Connect("邮件服务器", 110, false);

                // 输入邮箱账号和密码
                client.Authenticate("账号", "密码");


                int messageCount = client.GetMessageCount();

                //此处注意，循环遍历邮箱的时候是从1开始的，1代表最早的邮件
                for (int i = 1; i <= messageCount; i++)
                {
                    //获取邮件
                    Message message = client.GetMessage(i);
                    //获取发件人
                    string sender = message.Headers.From.DisplayName;
                    Console.WriteLine("发件人：" + sender);
                    //获取发件邮箱
                    string from = message.Headers.From.Address;
                    Console.WriteLine("发件邮箱：" + from);
                    //获取收件人
                    var recive = message.Headers.To;
                    for (int ace = 0; ace < recive.Count; ace++)
                    {
                        RfcMailAddress aaaa = recive[ace];
                        Console.WriteLine("接收人：" + aaaa.Address);
                        Console.WriteLine("******************************");
                    }
                    Console.WriteLine(@"/");
                    //获取抄送人
                    var cc = message.Headers.Cc;                    
                    for (int ace = 0; ace < cc.Count; ace++)
                    {
                        RfcMailAddress aaaa = cc[ace];
                        Console.WriteLine("抄送人：" + aaaa.Address);
                        Console.WriteLine("******************************");
                    }
                    //获取主题
                    string subject = message.Headers.Subject;
                    Console.WriteLine("主题：" + subject);
                    //获取发件时间，此处时间为UTC时间，需要手动转换到本地时间
                    DateTime Datesent = message.Headers.DateSent;
                    Datesent = Datesent.AddHours(8);
                    Console.WriteLine("发送日期：" + Datesent);//UTC时区，需要手动转换
                    //获取接收时间，默认格式类似Fri, 17 Aug 2018 08:07:09 +0800这样，不需要这种格式的必须自己进行转换
                    string Date = message.Headers.Date;
                    Console.WriteLine("未格式化日期：" + Date);
                    CultureInfo cultureInfo = CultureInfo.CreateSpecificCulture("en-US");
                    string format = "ddd, d MMM yyyy HH:mm:ss zz00";
                    DateTime a = DateTime.ParseExact(Date, format, cultureInfo);
                    Console.WriteLine("接收日期：" + a);
                    Console.WriteLine("-------------------------------");
                    //获取邮件内容
                    MessagePart messagePart = message.MessagePart;            
                    string body = " ";
                    if (messagePart.IsText)
                    {
                        body = messagePart.GetBodyAsText();
                    }
                    else if (messagePart.IsMultiPart)
                    {
                        MessagePart plainTextPart = message.FindFirstPlainTextVersion();
                        if (plainTextPart != null)
                        {
                            
                            body = plainTextPart.GetBodyAsText();
                        }
                        else
                        {
                            
                            List<MessagePart> textVersions = message.FindAllTextVersions();
                            if (textVersions.Count >= 1)
                                body = textVersions[0].GetBodyAsText();
                            else
                                body = "<<OpenPop>> Cannot find a text version body in this message.";
                        }
                        Console.WriteLine(body);
                        Console.WriteLine("===============");
                        //遍历并获取邮件附件
                        foreach (MessagePart attachment in message.FindAllAttachments())
                        {
                            File.WriteAllBytes(attachment.FileName, attachment.Body);
                        }
                        //删除邮件
                        client.DeleteMessage(messageCount);
                        // POP3要求您“提交”更改
                        //通过向服务器发送QUIT命令来完成
                        client.Dispose();
                        //也可以通过发送RSET命令重置所有标记的消息。
                        client.Reset();
                    }
                        //关闭连接
                        client.Disconnect();
                }
            }
        }

番外：如果要把邮件存入数据库的话一定要注意邮件内的特殊字符，比如'号，在存储的时候如果使用手写sql存入的话一定要先把它replace成''，也就是两个单引号，否则会出现无法正常存储的情况