'mailers' => [
        'smtp' => [
            'transport' => 'smtp',
            'host' => env('MAIL_HOST', 'smtp.mailgun.org'),
            'port' => env('MAIL_PORT', 587),
            'encryption' => env('MAIL_ENCRYPTION', 'tls'),
            'username' => env('MAIL_USERNAME'),
            'password' => env('MAIL_PASSWORD'),
            'timeout' => null,
            'local_domain' => env('MAIL_EHLO_DOMAIN'),
        ],
        ]

 public function build()
    {
        return $this->from(env('MAIL_USERNAME'),env('MAIL_FROM_ADDRESS'))
        ->view('emails.shipped');
    }

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

$user = User::all();
Mail::to('xxx@qq.com')->send(new OrderShipped($user));

<h2>測試郵箱發(fā)送</h2>
<p>{{$user[0]['email']}}</p>

 public function build()
    {
        return $this->from(env('MAIL_USERNAME'),env('MAIL_FROM_ADDRESS'))
            ->with([
                'name' => '測試變量',
                'time' => date('Y-m-d H:i:s')
            ])
            ->view('emails.shipped');
    }

<h2>測試郵箱發(fā)送</h2>
名字:<p>{{$name}}</p>
發(fā)送時間<p>{{$time}}</p>
郵箱:<p>{{$user[0]['email']}}</p>