jpop = new jmail.POP3Class();//实例化
            //打开POP3服务器的连接             jpop.Connect(Email, Password, Server, Port);
            if (jpop.Count > 0)//有邮件             {
                for (int i = 1; i <= jpop.Count; i++)
                {
                    lbltoAccessState.Text = "正在导入邮件！";
                    lbltoAccessState.ForeColor = Color.Green;

                    jme = jpop.DownloadSingleMessage(i);
                    //获取附件集合 atts = jme.Attachments;
                    //获取第一个附件 att = atts[0];
                    //邮件格式设置 jme.Charset = "UTF-8";//文本编码
                    //jme.Silent = true;
                    // //jme.EnableCharsetTranslation = true;
                    //jme.ContentTransferEncoding = "Base64"; jme.Encoding = "Base64"; //设置附件默认编码 
                    jme.ISOEncodeHeaders = false; //邮件头是否使用iso-8859-1编码 默认值为true

sql = "insert into EmailContent (邮件主题,发件人,邮件内容,发送日期,附件)" + "values ('" + jme.Subject + "','" + jme.From + "','" + jme.Body +"','" + jme.Date + "','" + att.Name + "')";