mailkit用163发邮件

public static void SendEmail(string toEmail, string Title, string bodytxt)
        {
            //以下stmp服务器及用户名密码保证长期有效
            string mtEmailName = "发件人名称";
            string mtEmailSmtp = "smtp.163.com";
            string mtEmailAddress = "发件人@163.com";
            string mtSqm = "授权码";

            MimeMessage message = new MimeMessage();
            //发件人
            message.From.Add(new MailboxAddress(mtEmailName, mtEmailAddress));
            //收件人
            message.To.Add(new MailboxAddress( toEmail));
            //标题
            message.Subject = Title;
            //产生一个支持HTml 的TextPart
            TextPart body = new TextPart(TextFormat.Html)
            {
                Text = bodytxt
            };

            //创建Multipart添加附件
            Multipart multipart = new Multipart("mixed");
            multipart.Add(body);

            //正文内容，发送
            message.Body = multipart;
            //message.Body = body;
            using (SmtpClient client = new SmtpClient())
            {
                //Smtp服务器
                client.Connect(mtEmailSmtp, 587, true);
                //登录，发送
                //特别说明，对于服务器端的中文相应，Exception中有编码问题，显示乱码了
                client.Authenticate(mtEmailAddress, mtSqm);

                client.Send(message);
                //断开
                client.Disconnect(true);
            }
        }