Controller

public function createFormalEmail(requestCreateFormalEmail $request)
    {
        Mail::send('email.sendCreateFormalEmail', [
            "name" => $request->get('name'),
            "subject_name" => $request->get('subject_name'),
            "content" => $request->get('content')
        ], function ($message) use ($request){

            $message->from($request->get('email_from'));
            $message->to($request->get('email'));
            if(!empty($request->get('email_cc')))
            {
                $message->cc($request->get('email_cc'));
            }
            if(!empty($request->get('email_bcc')))
            {
                $message->bcc($request->get('email_bcc'));
            }
            if(!empty($request->file('file')))
            {
                $file = $request->file('file');

                $message->attach(
                    $file->getRealPath() ,
                    [
                        'as' => $request->get('file_name'),
                        'mime' => $file->getMimeType()
                    ]
                );
            }
            $message->getHeaders()
                ->addTextHeader('Content-Type', 'text/plain; charset=utf-8');
            $message->subject($request->get('subject_name'));
        });

        /*
        $request = new Request([
            'name'         => $request->get('name'),
            'email_from'   => $request->get('email_from'),
            'email'        => $request->get('email'),
            'email_cc'     => $request->get('email_cc'),
            'email_bcc'    => $request->get('email_bcc'),
            'subject_name' => $request->get('subject_name'),
            'content'      => $request->get('content'),
            'file_name'    => $request->get('file_name'),
            'file'          => $request->file('file')->getRealPath(),
            'file_mime_type' => $request->file('file')->getMimeType(),
        ]);
        */

        //dd($request);

        //dispatch(new CreateFormalEmail($request));

        $html = view('email.sendCreateFormalEmail', [
            "name" => $request->get('name'),
            "subject_name" => $request->get('subject_name'),
            "content" => $request->get('content')
        ]);

        if(!empty($request->file('file')))
        {
            $random = str_random(5);
            $file_name = $random.'_'.$request->get('file_name');
            $request->file('file')->move(public_path().'/uploads/', $file_name);
        }

        FormalEmail::create([
            'name' => $request->get('name'),
            'email_from' => $request->get('email_from'),
            'email' => json_encode($request->get('email')),
            'email_cc' => json_encode($request->get('email_cc')),
            'email_bcc' => json_encode($request->get('email_bcc')),
            'subject_name' => $request->get('subject_name'),
            'content' => $request->get('content'),
            'file' => public_path().'/uploads/',
            'file_name' => $file_name,
            'body_mail' => $html,
            'status' => 1
        ]);

        return response()->json([
            'message' => 'Success'
        ], 200);
    }

JOB

<?php

namespace App\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Support\Facades\Mail;

class CreateFormalEmail implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public $name;
    public $email_from;
    public $email;
    public $email_cc;
    public $email_bcc;
    public $subject_name;
    public $content;
    public $file;
    public $file_name;
    public $file_mime_type;
    public $timeout = 120;
    public $tries = 3;

    /**
     * CreateFormalEmail constructor.
     * @param $request
     */
    public function __construct($request)
    {
        //
        $this->name         = $request->get('name');
        $this->email_from   = $request->get('email_from');
        $this->email        = $request->get('email');
        $this->email_cc     = $request->get('email_cc');
        $this->email_bcc    = $request->get('email_bcc');
        $this->subject_name = $request->get('subject_name');
        $this->content      = $request->get('content');
        $this->file         = $request->get('file');
        $this->file_name    = $request->get('file_name');
        $this->file_mime_type    = $request->get('file_mime_type');
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        $data = [
            'name' => $this->name,
            'email_from' => $this->email_from,
            'email' => $this->email,
            'email_cc' => $this->email_cc,
            'email_bcc' => $this->email_bcc,
            'subject_name' => $this->subject_name,
            'content' => $this->content,
            'file' => $this->file,
            'file_name' => $this->file_name,
            'file_mime_type' => $this->file_mime_type
        ];

        Mail::send('email.sendCreateFormalEmail', [
            "name" => $data['name'],
            "subject_name" => $data['subject_name'],
            "content" => $data['content']
        ], function ($message) use ($data){

            $message->from($data['email_from']);
            $message->to($data['email']);
            if(!empty($data['email_cc']))
            {
                $message->cc($data['email_cc']);
            }
            if(!empty($data['email_bcc']))
            {
                $message->bcc($data['email_bcc']);
            }
            if(!empty($data['file']))
            {
                $message->attach(
                    $data['file'] ,
                    [
                        'as' => $data['file_name']
                    ]
                );
            }
            $message->subject($data['subject_name']);
        });
    }
}