Seding email via WPF make app shutdown

Question

When I try to send email on computer with enviroment(Visual Studio 2015) everything is fine but when I copied it to another computer(VMWare Virtual Machine) and try to run it shutdown, here is main code:

    try
    {
        SmtpClient client = new SmtpClient();
        client.Port = 587;
        client.Host = "smtp.gmail.com";
        client.EnableSsl = true;
        client.Timeout = 10000;
        client.DeliveryMethod = SmtpDeliveryMethod.Network;
        client.UseDefaultCredentials = false;
        client.Credentials = new System.Net.NetworkCredential("bazymysql@gmail.com", "xyz");

        MailMessage mm = new MailMessage("donotreply@domain.com", "bazymysql@gmail.com", "Przechwycony ciag znakow", tresc.Text);
        mm.BodyEncoding = UTF8Encoding.UTF8;
        mm.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;

        client.Send(mm);
    }
    catch (SmtpException ex)
    {
        MessageBox.Show(ex.Message);
    }

What I've tried:

copy System.Net dll
developing 86x 64x
run as admin

It might be that it's running the thread into infinity. I would suggest that you enclose the part in a `Thread` so that it runs separately. The `SmtpClient` will run until it sends or fails the email. — Theunis, Feb 06 '16 at 19:29
@Theunis I cant understand what you mean :( Can you explain this on code? — KariiO, Feb 06 '16 at 19:31
Don't add your password in code please, and check below what I was trying to explain — Theunis, Feb 06 '16 at 19:35

score 0 · Answer 1 · answered Feb 06 '16 at 19:33

Maybe you can try the following

try
{
    SmtpClient client = new SmtpClient();
    client.Port = 587;
    client.Host = "smtp.gmail.com";
    client.EnableSsl = true;
    client.Timeout = 10000;
    client.DeliveryMethod = SmtpDeliveryMethod.Network;
    client.UseDefaultCredentials = false;
    client.Credentials = new System.Net.NetworkCredential("bazymysql@gmail.com", "xyz");

    MailMessage mm = new MailMessage("donotreply@domain.com", "bazymysql@gmail.com", "Przechwycony ciag znakow", tresc.Text);
    mm.BodyEncoding = UTF8Encoding.UTF8;
    mm.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
    Thread sendMailThread = new Thread(()=>{
        client.Send(mm); //This will ensure that your sending happens on a second thread and that it does not crash your main thread.
    });
    sendMailThread.Start();
}
catch (SmtpException ex)
{
    MessageBox.Show(ex.Message);
}

then it might be the virtual machine that shuts down to another reason, can't comment on things that I can't test — Theunis, Feb 08 '16 at 08:17

Seding email via WPF make app shutdown

1 Answers1