使用c#从hotmail发送邮件有时会失败

本文关键字：失败 hotmail 使用 | 更新日期: 2023-09-27 18:01:24

我有c#代码发送邮件。代码是工作良好的gmail，雅虎配置。但是对于hotmail来说，有时邮件发送，有时邮件不发送。我观察到yahoo mail的响应时间比gmail要好。但是hotmail和yahoo,gmail相比反响很差。

什么是理性?如何配置hotmail以获得良好的响应。

这是我发送邮件的代码:

 private void button2_Click(object sender, EventArgs e)
 {
            SmtpClient client = new SmtpClient();
            MailMessage message = new MailMessage();
        message.To.Add("user_name");
                message.From = new MailAddress("user_name");
                message.Subject = "Email Confirmation";
                message.BodyEncoding = System.Text.Encoding.UTF8;
                message.SubjectEncoding = System.Text.Encoding.UTF8;
    client.Port=587
    client.Host="smtp.live.com";
    System.Net.NetworkCredential nc = new System.Net.NetworkCredential("user_name", "password");
                if (mail_server == "smtp.gmail.com" || mail_server == "smtp.live.com")
                {
                    client.EnableSsl = true;
                }
                client.UseDefaultCredentials = false;
                client.Credentials = nc;
                Ping p = new Ping();
                bool result = false;
                int i = 10;
                do
                {
                    PingReply reply = p.Send("smtp.live.com", 587);
                    if (reply.Status == IPStatus.Success)
                    {
                        result = true;
                    } Thread.Sleep(500);
                    i--;
                } while (result == false && i != 0);
                if (result == true)
                {
                    client.Send(message);
                    MessageBox.Show("Email sent successfully");                    

                }
                else
                {
                    MessageBox.Show("Email not sent");
                }
 }

使用c#从hotmail发送邮件有时会失败

如果你正在尝试上面的代码发送电子邮件，它显然将无法发送它，我不知道你使用Ping类发送电子邮件的原因。

修复代码: 
    SmtpClient client = new SmtpClient();
    MailMessage message = new MailMessage();
    message.To.Add("user_name");
    message.From = new MailAddress("user_name");
    message.Subject = "Email Confirmation";
    message.BodyEncoding = Encoding.UTF8;
    message.SubjectEncoding = Encoding.UTF8;
    client.Port = 587;
    client.Host = "smtp.live.com";
    NetworkCredential nc = new NetworkCredential("user_name", "password");
    string mail_server = "smtp.live.com";
    if (mail_server == "smtp.gmail.com" || mail_server == "smtp.live.com")
        {
            client.EnableSsl = true;
        }
        client.UseDefaultCredentials = false;
        client.Credentials = nc;
    try
    {
        client.Send(message);
    }
    catch (SmtpException exception)
    {
        Console.WriteLine(exception.Message);
    }
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