laravel队列任务发送邮件取不到附件

Question

laravel框架使用队列发送带附件的邮件，发现400kb左右附件发送没有问题，600kb或以上的附件无法取到（邮件发送成功，但是邮件没有附件）。直接在controller里调用mail::send方法的话，所有邮件附件发送正常。
SendEmail.php

public function __construct($data)
    {
        $this->book_data = $data;
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
       

        Mail::send('emails.test',['name'=>$this->book_data['book_name']],function($message) {
           
            $message->to($this->book_data['to'])->subject($this->book_data['book_name']);
            $book_gbk_name = iconv('UTF-8','GBK',$this->book_data['book_name']);
            $message->attach($this->book_data['book_path'].'/'.$book_gbk_name,['as'=>$this->book_data['book_name']]);
        });
    }

Controller:

$job = (new SendEmail($data))->delay(60*5);
dispatch($job);

Answer 1

PHP artisan：work