email oversite validation

jQuery( document ).ready(function($) {
		
	//target whatever submits the form. 
	$('button.lp-pom-button').on('click', function (e) {
		//prevent the form from submitting
		e.preventDefault();
		
		//get the email address
		var emailaddress = $('.form_elem_email').val();

		//call the validation function
		eoValidate(emailaddress, function (response){
			/*
			
			Response codes and meanings
	
			0	Retry	Unable to establish a validation resopnse from the ISP - retry again.
			1	Verified	Email address is deliverable.
			2	Undeliverable	Email address does not exist, invalid, suspended, over quota or disabled.
			3	Catch All	Domain of email address accepts all mail and it is impossible to determine validity. If the email address was acquired organically or you have confidence in the validity of the email address, then send at your discretion.
			4	Role	Email is associated to common distribution groups. abuse@, sales@, no-reply@, test@ and etc.
			5	Malformed	Email address does not conform to valid email format.
			6	SpamTrap	Avoid SpamTrap emails at all cost. Those accounts are kept alive to damage sender reputation.
			7	Complainer	Complainers are commonly users who like to complain after receiving email. Complaints can vary from ISP notification to cease and desist letters. In some rare cases they can also pursue litigation. These are valid addresses but we do not recommend sending mail.
			9	Bot	Bots are email accounts that are maintained by bot servers for sending spam, clicking every link and other harmful or harmless activities.
			10	Seed Account	Seed accounts are known email addresses that are maintained in masses for various reasons. Most commonly they are used for compliance tracking.
			11	Unknown	Email address cannot be verified at the moment. Retrying later may succeed.
			12	Unauthorized	Unauthorized API access. This error will be returned if IP or URL are not whitelisted and there are over 50 requests within 24 hours.
			13	Disposable Email	Temporary email account that is designed to only be used few times before expiring.
			20	Suppressed	Email is in known suppression list. This is only available when advanced validation is enabled on particular list.

			*/

			//just checking if its verified
			if (response.ResultId == 1) {
				$('form').submit();
			}
			
			//not verified
			else {
				alert('This email address is not valid. Please try again with another email');
			}
		})
	});
	
	
	function eoValidate(email, callback) {

		//just making an ajax request to email oversight
		var settings = {
		  "async": true,
		  "crossDomain": true,
		  "url": "https://api.emailoversight.com/api/EmailValidation?apitoken=XXXXXX&listid=51593&email="+email,
		  "method": "GET"
		};
		
		$.ajax(settings).done(function (response) {
		  if (typeof callback == 'function')
			callback(response);
		});
	}
});