.net core 发送邮件

　　　var message = new MimeMessage();
            //发送方
            message.From.Add(new MailboxAddress("liyy", "xxxxx.com"));
            //接受方
            message.To.Add(new MailboxAddress("Mrs. li", "xxxxx.com"));
            //标题
            message.Subject = "周末去哪嗨？";
            //文字内容
            message.Body = new TextPart("plain") { Text = "上海一日游" };
            //开始发送
            using (var client = new MailKit.Net.Smtp.SmtpClient())
            {
                client.ServerCertificateValidationCallback = (s, c, h, e) => true;

                client.Connect("smtp.live.com", 465, true);

                client.AuthenticationMechanisms.Remove("XOAUTH2");

                client.Authenticate("发送方邮箱", "发送方邮箱Smtp授权码");

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