Laravel - Как предотвратить попадание Laravel писем в нежелательную почту

Question

Я пытаюсь использовать Laravel -5.8 для уведомления по электронной почте с Sendgrid:

config / mail. php

return [

  'driver' => env('MAIL_DRIVER', 'smtp'),

  'host' => env('MAIL_HOST', 'smtp.sendgrid.net'),

  'port' => env('MAIL_PORT', 465),

  'from' => [
    'address' => env('MAIL_FROM_ADDRESS', 'usersupport@laravelapp.com'),
    'name' => env('MAIL_FROM_NAME', 'JFK'),
  ],

  'encryption' => env('MAIL_ENCRYPTION', 'ssl'),

  'username' => env('MAIL_USERNAME','kkkddd'),

  'password' => env('MAIL_PASSWORD','@kkkdhhhs'),

  'sendmail' => '/usr/sbin/sendmail -bs',

  'markdown' => [
     'theme' => 'default',

    'paths' => [
        resource_path('views/vendor/mail'),
    ],
  ],

  'log_channel' => env('MAIL_LOG_CHANNEL'),

];

Вот функция контроллера. Контроллер

public function publish_all_posts(){
    $userCompany = Auth::user()->company_id;
    $userEmployee = Auth::user()->employee_id;    
    $userId = Auth::user()->id;
    $userEmail = Auth::user()->email;
    $userCode = Auth::user()->employee_code;
    $userFirstName = Auth::user()->first_name;
    $userLastName = Auth::user()->last_name;   


    $identities = DB::table('appraisal_identity')->select('id')->where('company_id', $userCompany)->where('is_current', 1)->first();
    $reviewperiods = DB::table('appraisal_identity')->select('appraisal_name')->where('company_id', $userCompany)->where('is_current', 1)->first();
    $reviewperiod = $reviewperiods->appraisal_name;       

    $linemanager = DB::table('hr_employees')->where('id', $userEmployee)->first();
    $linemanageruserid = DB::table('hr_employees')->select('line_manager_id')->where('line_manager_id', $linemanager->line_manager_id)->first();

    $linemanageruserids = DB::table('hr_employees')->where('id', $linemanageruserid->line_manager_id)->first();      
    $linemanageremails = DB::table('hr_employees')->select('email')->where('id', $linemanageruserids->id)->first();

    $linemanagerfirstnames = DB::table('hr_employees')->select('first_name')->where('id', $linemanageruserids->id)->first();
    $linemanagerfirstname = $linemanagerfirstnames->first_name;
    $linemanagerlastnames = DB::table('hr_employees')->select('last_name')->where('id', $linemanageruserids->id)->first();
    $linemanagerlastname = $linemanagerlastnames->last_name;
    $linemanagerids = DB::table('hr_employees')->select('id')->where('line_manager_id', $linemanager->line_manager_id)->first();
    $linemanagerid = $linemanagerids->id;

    $details = [
        'sent_to' => $linemanagerid,
        'sent_by' => $userId,
        'subject' => $userFirstName .' for '.$reviewperiod,
        'greeting' => 'Dear '.$linemanagerfirstname . ' '. $linemanagerlastname . ',',
        'body' =>  'Your direct report (' . $userFirstName . ' ' .$userLastName. ') ',
        'line1' => 'Your direct report (' . $userFirstName . ' ' .$userLastName. ') ',
        'line2' => 'has just completed the 3+1 goals for the year.',
        'line3' => 'Your reviews and approvals are required urgently.',
        'thanks' => 'Thank you!',            
        'user_fullname' => $userFirstName. ' ' . $userLastName,
        'user_code' => $userCode,
        'user_email' => $userEmail,
        'user_id' => $userId,
        'line_manager_full_name' => $linemanagerfirstname. ' ' . $linemanagerlastname,
        'review_periond' => $reviewperiod,
        'line_manager_email' => $linemanageremail,
        'line_manager_id' => $linemanagerid,
        'notification_type' => 'goal setting',

    ];  

    Notification::route('mail', $details['line_manager_email'])
                ->notify(new \App\Notifications\Publish($details));

}

и это функция уведомления. Уведомление

class Publish extends Notification implements ShouldQueue
{
 use Queueable;

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

 public function via($notifiable)
 {
    return ['mail'];
 }

 public function toMail($notifiable)
 {
    return (new MailMessage)
                ->subject($this->details['subject'])
                ->greeting($this->details['greeting'])
                ->line($this->details['line1'])
                ->line($this->details['line2'])
                ->line($this->details['line3'])
                ->line($this->details['thanks']);
 }        

 public function toArray($notifiable)
 {
    return [
        //
    ];
 }
}

Изначально, когда пользователи говорили, что они не получали никаких писем, я думал, что письма не были отправлены. В конце концов я узнал, что письма пошли на нежелательную почту.

Как мне решить эту проблему?

Спасибо