Use my class

app/Core.php

PHP Code:

<?php

namespace App\Controllers;

use App\ThirdParty\EmailValidation\EmailValidation;

class Core extends BaseController
{
    public function init()
    {
        $em = new EmailValidation();
        $res = $em->check('[email protected]');
        dd($res);
    }
} 


app/ThirdParty/EmailValidation/EmailValidation.php

PHP Code:

<?php

namespace App\ThirdParty\EmailValidation;

/**
* Class to check up e-mail
*
* @author Konstantin Granin <[email protected]>
* @copyright Copyright (c) 2010, Konstantin Granin
*/
class EmailValidation
{
    /**
    * User name
    * @var string
    */
    private $_fromName;

    /**
    * Domain name
    * @var string
    */
    private $_fromDomain; 


class body from github...