Laravel 5.1 example of abstracting e-mail sending into its own dedicated class

Extensions\Postmaster.php

<?php

namespace App\Extensions;

use Illuminate\Support\Facades\Mail;

class Postmaster {
    /**
     * Send an e-mail to a specific user.  Pass in the User object, 
     * the name of the view, any data needed by the view, and the subject.
     */
    public static function toUser($user, $view, $data, $subject = false)
    {
        Mail::send($view, $data, function ($message) use ($user, $subject) {
            if ($user->email) {
                $message->to($user->email, $user->name)->subject($subject);
            } else {
                return false;
            }
        });

        return true;
    }
}