create empty new auth controller

app/Http/Controllers/NewAuthController.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class NewAuthController extends Controller
+{
+    public function emailChecking()
+    {
+        if (1) {
+            // email exists in db
+        }
+
+        if (2) {
+            // email exists in cache
+        }
+
+        if (3) {
+            // email exists in invite table
+        }
+
+        if (4) {
+            // none of above
+        }
+    }
+}