无法打开默认邮件客户端

Question

I am using following code to open the default mail client

using (Process mailProcess = new Process())
{
     ProcessStartInfo processInfo = new ProcessStartInfo();
     processInfo.FileName = string.Format(CultureInfo.InvariantCulture, 
                            "mailto:{0}?subject={1}&body={2}", 
                             sendToAddress.Address, subject, message);
     processInfo.UseShellExecute = true;
     processInfo.WindowStyle = ProcessWindowStyle.Normal;
     mailProcess.StartInfo = processInfo;
     Process.Start(processInfo);
}

It starts the process but doesn't show mail client. Actually when I am using only localhost it doesn't open the mail client although it starts the process.

When I am using localhost: it works.

Can anybosy hel me?

Answer 1

According to this you need to make sure that you URL-encode the file name. It may not contain spaces or other special characters not available in URLs.

Is suspect that your subject and body at least contain spaces or newlines. You can use HttpUtility.UrlEncode for this task.