научились отправлять письма

app/Http/Controllers/UsersController.php

@@ -1,7 +1,9 @@
 <?php
 
 namespace App\Http\Controllers;
+use Illuminate\Mail\Mailable;
 use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Facades\Mail;
 
 use App\Models\User;
 use Illuminate\Http\Request;
@@ -21,6 +23,10 @@ class UsersController extends Controller
 
         $user->save();
 
+        dispatch(function () use ($user) {
+            Mail::to($user->email)->send(new Mailable());
+        });
+
         return ['token' => $user->createToken('frontend')->plainTextToken];