title: Use Laravel routeNotifcationForMail() to send to multiple emails addresses?
body: <p>I'm using the <code>Notifiable</code> trait on my Model.</p>
  
  <p>User has comma-separated list of subscribed emails (string).</p>
  
  <p>The documentation and my background reading suggests that this will only route to a single email address.</p>
  
  <pre><code>&lt;?php
  
  namespace App;
  
  use Illuminate\Notifications\Notifiable;
  use Illuminate\Foundation\Auth\User as Authenticatable;
  
  class User extends Authenticatable
  {
      use Notifiable;
  
      /**
       * Route notifications for the mail channel.
       *
       * @return string
       */
      public function routeNotificationForMail()
      {
          return $this-&gt;email_address;
      }
  }
  </code></pre>
  
  <p><a href="https://laravel.com/docs/5.3/notifications#using-the-notifiable-trait" rel="nofollow noreferrer">Laravel 5.3 Notifications</a></p>
  
  <p>I've also read <a href="https://mattstauffer.co/blog/the-new-notification-system-in-laravel-5-3" rel="nofollow noreferrer">Matt Stauffer on Notifications</a> but can't see an answer there.</p>
  
  <p>My <code>NotificationClass-&gt;toMail()</code> is as follows.</p>
  
  <pre><code>/**
   * Get the mail representation of the notification.
   *
   * @param Store $store
   * @return mixed
   * @throws Exception
   */
  public function toMail(User $user)
  {
      return (new MailMessage)-&gt;view('notifications.emails.activity-roundup', compact('user'));
  }
  </code></pre>