public static IAsyncResult BeginGetInvalidAddresses(AddressCollection addresses, AsyncCallback callback)
 {
     SmtpValidator._delegateGetInvalidAddresses = SmtpValidator.GetInvalidAddresses;
     return SmtpValidator._delegateGetInvalidAddresses.BeginInvoke(addresses, callback, SmtpValidator._delegateGetInvalidAddresses);
 }
 public static IAsyncResult BeginGetInvalidAddresses(AddressCollection addresses, AsyncCallback callback)
 {
     _delegateGetInvalidAddresses = GetInvalidAddresses;
     return(_delegateGetInvalidAddresses.BeginInvoke(addresses, callback, _delegateGetInvalidAddresses));
 }
 public static IAsyncResult BeginGetInvalidAddresses(AddressCollection addresses, AsyncCallback callback)
 {
     SmtpValidator._delegateGetInvalidAddresses = SmtpValidator.GetInvalidAddresses;
     return(SmtpValidator._delegateGetInvalidAddresses.BeginInvoke(addresses, callback, SmtpValidator._delegateGetInvalidAddresses));
 }