Question

嘿，伙计们，我正在尝试使用hotmail帐户设置电子邮件发送应用程序。代码如下所示：

MailMessage mail = new MailMessage(from, to);
        mail.Subject = "Proba email";
        mail.Attachments.Add(new Attachment("C:\\Documents and Settings\\Proba.txt"));
        SmtpClient client = new SmtpClient();
        client.UseDefaultCredentials = false;
        client.Port = 587; // 465 568
        client.Host = "smtp.live.com";
        client.EnableSsl = true;
        client.Credentials = new System.Net.NetworkCredential("smg@hotmail.com", "password");
        client.SendCompleted += new SendCompletedEventHandler(client_SendCompleted);
        client.SendAsync(mail, "token");

使用，Async我实际上没有错误，我甚至得到反馈说消息发送（事件触发器）但消息永远不会到达。如果我使用简单的client.Send void，我收到以下错误：

5.3.4未采取请求的行动;要继续发送邮件，请登录您的帐户。

那么关于问题可能是什么的任何想法？当我试图传递hotmail的SMTP设置时，我得到了各种设置，说端口25，然后587所以也许它就是那里的东西。非常感谢任何帮助，谢谢！

好的，现在肯定在工作了，我想问一下我是否必须定期做“我不是机器人检查”或者那是一次性的事情吗？

Answer 1

这是我的设置，BTW async不会返回任何错误。

<system.net>
<mailSettings>
  <!-- E-mail server settings -->
  <smtp from="do-not-reply@example.com">
    <network host="smtp.example.com" port="25" userName="" password="" defaultCredentials="true" />
  </smtp>
</mailSettings>

    void SendEmail(EmailEntity email)
    {
        var mailMessage = new MailMessage { From = new MailAddress(email.From) };
        mailMessage.To.Add(new MailAddress(email.To));
        mailMessage.Subject = email.Subject;
        mailMessage.Body = email.Body;
        mailMessage.IsBodyHtml = true;

        // Send the email
        var client = new SmtpClient();
        client.Send(mailMessage);
    }

Answer 2

我有一个类似的设置，我只使用适合我的Send（）。我唯一的额外补充是

 client.DeliveryMethod = SmtpDeliveryMethod.Network;

在client.Send();之前。不确定这是否能解决您的问题。您是否使用相同的服务器和凭据进行Outlook设置？

Answer 3

SmtpClient smtpClient = new SmtpClient();
        MailMessage message = new MailMessage();

        try
        {
           // System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
            MailAddress fromAddress = new MailAddress(txt_name.Text, txt_to.Text);


            smtpClient.Host = "smtp.gmail.com";


            smtpClient.Port = 25;

           // msg.From = new System.Net.Mail.MailAddress("xyz@gmail.com");

          message.From = fromAddress;

            message.To.Add("xyz111@gmail.com");


            message.Body = txt_des.Text;
            smtpClient.EnableSsl = true;

            System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();

            NetworkCred.UserName = "xyz@gmail.com";

            NetworkCred.Password = "xtz";

            smtpClient.UseDefaultCredentials = true;

            smtpClient.Credentials = NetworkCred; 


            smtpClient.Send(message);

            lblStatus.Text = "Email successfully sent.";
        }
        catch (Exception ex)
        {
            lblStatus.Text = "Send Email Failed." + ex.Message;
        }

C＃app中的SMTP客户端发送错误

3 个答案: