laravel-async-queue Mail queue doesn't work

I'm using async with gmail email smtp. It's not working

Here's my queue.php

'async', 'connections' => array( 'sync' => array( 'driver' => 'sync', ), 'async' => array( 'driver' => 'async', ), 'beanstalkd' => array( 'driver' => 'beanstalkd', 'host' => 'localhost', 'queue' => 'default', 'ttr' => 60, ), 'sqs' => array( 'driver' => 'sqs', 'key' => 'your-public-key', 'secret' => 'your-secret-key', 'queue' => 'your-queue-url', 'region' => 'us-east-1', ), 'iron' => array( 'driver' => 'iron', 'host' => 'mq-aws-us-east-1.iron.io', 'token' => 'your-token', 'project' => 'your-project-id', 'queue' => 'your-queue-name', 'encrypt' => true, ), 'redis' => array( 'driver' => 'redis', 'queue' => 'default', ), 'async' => array( 'driver' => 'async', 'binary' => 'php', 'binary_args' => '', ), ), 'failed' => array( 'database' => 'mysql', 'table' => 'failed_jobs', ), ``` ); Here's the code ``` Mail::queue('emails.welcome.welcome', array('firstName'=>Input::get('firstName')), function($message) { $message->to(Input::get('email'), Input::get('firstName').' '.Input::get('lastName'))->subject('Welcome to eventsRack!'); }); ```