How to move the success and failure blocks from the main queue. Can you give please give a solution

Hi! In your code I saw that you are using a fixed timeout of 3 seconds for connecting MailGun. In practice, I can say that when my cellular connection was just a bit not ideal, though quite stable, the validator frequently failed. It seems, 3 seconds are often not enough. Though making it much longer would disturb the user, of course... So, maybe you could add timeout as another validator property?
Thank you for a great API though!

Cool class that I appreciated, but it passed success every time as there is not an if statement to display the failure if the is_valid key is 0.

I just added this that might help you finish this out.

 if(isValid == YES) {
                                           dispatch_async(dispatch_get_main_queue(), ^{
                                               success(isValid, didYouMean);
                                           });
                                       } else {
                                           NSError *errorVal = nil;
                                           dispatch_async(dispatch_get_main_queue(), ^{
                                               failure(errorVal);
                                           });
                                       }

Scenerio : When typing is fast then the response which comes is uneven

i.e shrawan.com response is is_valid = false and did_you_mean is "shrawan.com"

and the response of shrawan.co is is_valid = true and did_you_mean is nil

Type : shrawan.com fast in app and call email Validation API

Log Trace

2017-03-08 11:42:13.254392 TextValidation[2261:547905] **didYouMean== [email protected] --- && isValid 0 **
2017-03-08 11:42:13.536171 TextValidation[2261:547905] **didYouMean== (null) --- && isValid 1 **
2017-03-08 11:42:14.446487 TextValidation[2261:547905] **didYouMean== [email protected] --- && isValid 0

So last log is isValid is 0 . Which is wrong and must be isValid is true

Demo app
Generate above scenerio

Is there an easy way to allow the '+' sign to be a valid character? Currently it returns false.