webhooks-three.php

 // app/Http/Controllers/HooksController.php

 <?php

 namespace App\Http\Controllers;

 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Mail;
 use App\Mail\SendMailable;

 class HooksController extends Controller
 {
	 public function sendmails(Request $request)
	 {
		 $payload = $request->all();

		 if($payload['type'] == "message.new"){
			 foreach ($payload["members"] as $member) {
				 if($member\["user"\]["online"] == false){
				 $email = $member\["user"\]["id"]."@gmail.com";
				 Mail::to($email)->send(new SendMailable($member\["user"\]["name"]));
				 return 'Email was sent';
				 }
			 }
		 }
	 }
 }