I am attempting to use rate limiting to throttle outgoing mail in a laravel 8 project. I have two mail queues, named email and email2. I want each queue to limit to 15 emails per minute.

In my AppServiceProvider.php, I have

        RateLimiter::for('email', function ($job) {
            return Limit::perMinute(15)->by($job->queue);
        });

This is one of my mailables

class AuthTokenMail extends Mailable implements ShouldQueue
{
    use Queueable, SerializesModels;

    public function __construct(int $code)
    {
        $this->onQueue('email');
    }

    public function build()
    {
        return $this->text('emails.authtoken');
    }
    
    public function middleware()
    {
        return [new RateLimited('email')];
    }

}

But when I run it, there is no throttling. I am still getting >50 emails per minute.