laravel5.2 pushing to specific queue server

laravel5.2_pushing_to_specific_queue_server.php

Mail::setQueue(Queue::connection('sqs_send_mail'))
    ->queueOn(
        'queue-name',
        $mail_template,
        $mail_data,
        function($message) use ($to, $subject, $from, $from_name) {
        $message->to($to, $to)
            ->subject($subject)
            ->from($from, $from_name);
        }
    );