I want to pass a string into an email in Laravel, but the string is not being shown when viewing the email.

`$recoveryString` being passed into the mail:

```
$recoveryString = str_random(128);

$recoveryString = urlencode($recoveryString);   

RecoveryToken::where('user_id', $user->id)->delete();

$recoveryToken = RecoveryToken::create([
    'user_id' => $user->id,
    'recovery_token' => bcrypt($recoveryString),
]);         

Mail::to($user)->send(new ForgotEmail($user, $recoveryString));

```

**ForgotEmail.php**:

```
<?php

namespace App\Mail;

use App\User;
use App\RecoveryToken;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;

class ForgotEmail extends Mailable
{
    use Queueable, SerializesModels;

    public $user;
    public $recoveryString;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct(User $user, $recoveryString)
    {
        $this->user = $user;
        $recoveryString = $recoveryString;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->from('noreply@email.com')
                ->view('emails.forgot');
    }
}

```

In my blade template for the email, `{{ $user->username }}` will retrieve the correct data, but `{{ $recoveryString }}` will just be blank. Why is this happening? I was under the impression that any public property defined on your mailable class will automatically be made available to the view.