异步发送邮件C#代码

MailMessage m = new MailMessage
   ("[email?protected]","[email?protected]","This is the subject for the authorized email.","This is the body of the authorized mail!...");
  
// Send the message using authorization
SmtpClient client = new SmtpClient("smtp.sharejs.com");
client.Credentials = new NetworkCredential("user","password");
client.EnableSsl = true;
  
// Add the event handler
client.SendCompleted += new SendCompletedEventHandler(mail_SendCompleted);
  
// Send the message asynchronously
client.SendAsync(m,null);
  
// To Cancel the send
//client.SendAsyncCancel();
void mail_SendCompleted(object sender,AsyncCompletedEventArgs e)
{
    if (e.Cancelled)
        Console.WriteLine("Message cancelled");
    else if (e.Error != null)
        Console.WriteLine("Error: " + e.Error.ToString());
    else
        Console.WriteLine("Message sent");
}