diff --git a/src/app/Http/Controllers/API/V4/Admin/DomainsController.php b/src/app/Http/Controllers/API/V4/Admin/DomainsController.php
index e2d3b4bc..e83d929a 100644
--- a/src/app/Http/Controllers/API/V4/Admin/DomainsController.php
+++ b/src/app/Http/Controllers/API/V4/Admin/DomainsController.php
@@ -1,104 +1,104 @@
 <?php
 
 namespace App\Http\Controllers\API\V4\Admin;
 
 use App\Domain;
 use App\User;
 use Illuminate\Http\Request;
 
 class DomainsController extends \App\Http\Controllers\API\V4\DomainsController
 {
     /**
      * Search for domains
      *
      * @return \Illuminate\Http\JsonResponse
      */
     public function index()
     {
         $search = trim(request()->input('search'));
         $owner = trim(request()->input('owner'));
         $result = collect([]);
 
         if ($owner) {
             if ($owner = User::find($owner)) {
                 foreach ($owner->wallets as $wallet) {
                     $entitlements = $wallet->entitlements()->where('entitleable_type', Domain::class)->get();
 
                     foreach ($entitlements as $entitlement) {
                         $domain = $entitlement->entitleable;
                         $result->push($domain);
                     }
                 }
 
                 $result = $result->sortBy('namespace')->values();
             }
         } elseif (!empty($search)) {
             if ($domain = Domain::where('namespace', $search)->first()) {
                 $result->push($domain);
             }
         }
 
         // Process the result
         $result = $result->map(function ($domain) {
             $data = $domain->toArray();
             $data = array_merge($data, self::domainStatuses($domain));
             return $data;
         });
 
         $result = [
             'list' => $result,
             'count' => count($result),
             'message' => \trans('app.search-foundxdomains', ['x' => count($result)]),
         ];
 
         return response()->json($result);
     }
 
     /**
      * Suspend the domain
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      Domain identifier
+     * @param string                   $id      Domain identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function suspend(Request $request, $id)
     {
         $domain = Domain::find($id);
 
         if (empty($domain) || $domain->isPublic()) {
             return $this->errorResponse(404);
         }
 
         $domain->suspend();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.domain-suspend-success'),
         ]);
     }
 
     /**
      * Un-Suspend the domain
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      Domain identifier
+     * @param string                   $id      Domain identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function unsuspend(Request $request, $id)
     {
         $domain = Domain::find($id);
 
         if (empty($domain) || $domain->isPublic()) {
             return $this->errorResponse(404);
         }
 
         $domain->unsuspend();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.domain-unsuspend-success'),
         ]);
     }
 }
diff --git a/src/app/Http/Controllers/API/V4/Admin/UsersController.php b/src/app/Http/Controllers/API/V4/Admin/UsersController.php
index b95409c2..0eb1c97e 100644
--- a/src/app/Http/Controllers/API/V4/Admin/UsersController.php
+++ b/src/app/Http/Controllers/API/V4/Admin/UsersController.php
@@ -1,201 +1,201 @@
 <?php
 
 namespace App\Http\Controllers\API\V4\Admin;
 
 use App\Domain;
 use App\Sku;
 use App\User;
 use App\UserAlias;
 use App\UserSetting;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Validator;
 
 class UsersController extends \App\Http\Controllers\API\V4\UsersController
 {
     /**
      * Searching of user accounts.
      *
      * @return \Illuminate\Http\JsonResponse
      */
     public function index()
     {
         $search = trim(request()->input('search'));
         $owner = trim(request()->input('owner'));
         $result = collect([]);
 
         if ($owner) {
             if ($owner = User::find($owner)) {
                 $result = $owner->users(false)->orderBy('email')->get();
             }
         } elseif (strpos($search, '@')) {
             // Search by email
             $result = User::withTrashed()->where('email', $search)
                 ->orderBy('email')->get();
 
             if ($result->isEmpty()) {
                 // Search by an alias
                 $user_ids = UserAlias::where('alias', $search)->get()->pluck('user_id');
 
                 // Search by an external email
                 $ext_user_ids = UserSetting::where('key', 'external_email')
                     ->where('value', $search)->get()->pluck('user_id');
 
                 $user_ids = $user_ids->merge($ext_user_ids)->unique();
 
                 if (!$user_ids->isEmpty()) {
                     $result = User::withTrashed()->whereIn('id', $user_ids)
                         ->orderBy('email')->get();
                 }
             }
         } elseif (is_numeric($search)) {
             // Search by user ID
             if ($user = User::withTrashed()->find($search)) {
                 $result->push($user);
             }
         } elseif (!empty($search)) {
             // Search by domain
             if ($domain = Domain::withTrashed()->where('namespace', $search)->first()) {
                 if ($wallet = $domain->wallet()) {
                     $result->push($wallet->owner()->withTrashed()->first());
                 }
             }
         }
 
         // Process the result
         $result = $result->map(function ($user) {
             $data = $user->toArray();
             $data = array_merge($data, self::userStatuses($user));
             return $data;
         });
 
         $result = [
             'list' => $result,
             'count' => count($result),
             'message' => \trans('app.search-foundxusers', ['x' => count($result)]),
         ];
 
         return response()->json($result);
     }
 
     /**
      * Reset 2-Factor Authentication for the user
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      User identifier
+     * @param string                   $id      User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function reset2FA(Request $request, $id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         $sku = Sku::where('title', '2fa')->first();
 
         // Note: we do select first, so the observer can delete
         //       2FA preferences from Roundcube database, so don't
         //       be tempted to replace first() with delete() below
         $entitlement = $user->entitlements()->where('sku_id', $sku->id)->first();
         $entitlement->delete();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-reset-2fa-success'),
         ]);
     }
 
     /**
      * Suspend the user
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      User identifier
+     * @param string                   $id      User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function suspend(Request $request, $id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         $user->suspend();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-suspend-success'),
         ]);
     }
 
     /**
      * Un-Suspend the user
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      User identifier
+     * @param string                   $id      User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function unsuspend(Request $request, $id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         $user->unsuspend();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-unsuspend-success'),
         ]);
     }
 
     /**
      * Update user data.
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      User identifier
+     * @param string                   $id      User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function update(Request $request, $id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         // For now admins can change only user external email address
 
         $rules = [];
 
         if (array_key_exists('external_email', $request->input())) {
             $rules['external_email'] = 'email';
         }
 
         // Validate input
         $v = Validator::make($request->all(), $rules);
 
         if ($v->fails()) {
             return response()->json(['status' => 'error', 'errors' => $v->errors()], 422);
         }
 
         // Update user settings
         $settings = $request->only(array_keys($rules));
 
         if (!empty($settings)) {
             $user->setSettings($settings);
         }
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-update-success'),
         ]);
     }
 }
diff --git a/src/app/Http/Controllers/API/V4/Admin/WalletsController.php b/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
index 0ef93f0b..1c8462be 100644
--- a/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
+++ b/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
@@ -1,148 +1,148 @@
 <?php
 
 namespace App\Http\Controllers\API\V4\Admin;
 
 use App\Discount;
 use App\Http\Controllers\API\V4\PaymentsController;
 use App\Providers\PaymentProvider;
 use App\Transaction;
 use App\Wallet;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Validator;
 
 class WalletsController extends \App\Http\Controllers\API\V4\WalletsController
 {
     /**
      * Return data of the specified wallet.
      *
      * @param string $id A wallet identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function show($id)
     {
         $wallet = Wallet::find($id);
 
         if (empty($wallet)) {
             return $this->errorResponse(404);
         }
 
         $result = $wallet->toArray();
 
         $result['discount'] = 0;
         $result['discount_description'] = '';
 
         if ($wallet->discount) {
             $result['discount'] = $wallet->discount->discount;
             $result['discount_description'] = $wallet->discount->description;
         }
 
         $result['mandate'] = PaymentsController::walletMandate($wallet);
 
         $provider = PaymentProvider::factory($wallet);
 
         $result['provider'] = $provider->name();
         $result['providerLink'] = $provider->customerLink($wallet);
 
         return response()->json($result);
     }
 
     /**
      * Award/penalize a wallet.
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      Wallet identifier
+     * @param string                   $id      Wallet identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function oneOff(Request $request, $id)
     {
         $wallet = Wallet::find($id);
 
         if (empty($wallet)) {
             return $this->errorResponse(404);
         }
 
         // Check required fields
         $v = Validator::make(
             $request->all(),
             [
                 'amount' => 'required|numeric',
                 'description' => 'required|string|max:1024',
             ]
         );
 
         if ($v->fails()) {
             return response()->json(['status' => 'error', 'errors' => $v->errors()], 422);
         }
 
         $amount = (int) ($request->amount * 100);
         $type = $amount > 0 ? Transaction::WALLET_AWARD : Transaction::WALLET_PENALTY;
 
         DB::beginTransaction();
 
         $wallet->balance += $amount;
         $wallet->save();
 
         Transaction::create(
             [
                 'user_email' => \App\Utils::userEmailOrNull(),
                 'object_id' => $wallet->id,
                 'object_type' => Wallet::class,
                 'type' => $type,
                 'amount' => $amount < 0 ? $amount * -1 : $amount,
                 'description' => $request->description
             ]
         );
 
         DB::commit();
 
         $response = [
             'status' => 'success',
             'message' => \trans("app.wallet-{$type}-success"),
             'balance' => $wallet->balance
         ];
 
         return response()->json($response);
     }
 
     /**
      * Update wallet data.
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      Wallet identifier
+     * @param string                   $id      Wallet identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function update(Request $request, $id)
     {
         $wallet = Wallet::find($id);
 
         if (empty($wallet)) {
             return $this->errorResponse(404);
         }
 
         if (array_key_exists('discount', $request->input())) {
             if (empty($request->discount)) {
                 $wallet->discount()->dissociate();
                 $wallet->save();
             } elseif ($discount = Discount::find($request->discount)) {
                 $wallet->discount()->associate($discount);
                 $wallet->save();
             }
         }
 
         $response = $wallet->toArray();
 
         if ($wallet->discount) {
             $response['discount'] = $wallet->discount->discount;
             $response['discount_description'] = $wallet->discount->description;
         }
 
         $response['status'] = 'success';
         $response['message'] = \trans('app.wallet-update-success');
 
         return response()->json($response);
     }
 }
diff --git a/src/app/Http/Controllers/API/V4/UsersController.php b/src/app/Http/Controllers/API/V4/UsersController.php
index 676c4157..0d5ba52c 100644
--- a/src/app/Http/Controllers/API/V4/UsersController.php
+++ b/src/app/Http/Controllers/API/V4/UsersController.php
@@ -1,679 +1,679 @@
 <?php
 
 namespace App\Http\Controllers\API\V4;
 
 use App\Http\Controllers\Controller;
 use App\Domain;
 use App\Rules\UserEmailDomain;
 use App\Rules\UserEmailLocal;
 use App\Sku;
 use App\User;
 use Carbon\Carbon;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Validator;
 use Illuminate\Support\Str;
 
 class UsersController extends Controller
 {
     // List of user settings keys available for modification in UI
     public const USER_SETTINGS = [
         'billing_address',
         'country',
         'currency',
         'external_email',
         'first_name',
         'last_name',
         'organization',
         'phone',
     ];
 
     /**
      * Delete a user.
      *
      * @param int $id User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function destroy($id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         // User can't remove himself until he's the controller
         if (!$this->guard()->user()->canDelete($user)) {
             return $this->errorResponse(403);
         }
 
         $user->delete();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-delete-success'),
         ]);
     }
 
     /**
      * Listing of users.
      *
      * The user-entitlements billed to the current user wallet(s)
      *
      * @return \Illuminate\Http\JsonResponse
      */
     public function index()
     {
         $user = $this->guard()->user();
 
         $result = $user->users()->orderBy('email')->get()->map(function ($user) {
             $data = $user->toArray();
             $data = array_merge($data, self::userStatuses($user));
             return $data;
         });
 
         return response()->json($result);
     }
 
     /**
      * Display information on the user account specified by $id.
      *
      * @param int $id The account to show information for.
      *
      * @return \Illuminate\Http\JsonResponse
      */
     public function show($id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         if (!$this->guard()->user()->canRead($user)) {
             return $this->errorResponse(403);
         }
 
         $response = $this->userResponse($user);
 
         // Simplified Entitlement/SKU information,
         // TODO: I agree this format may need to be extended in future
         $response['skus'] = [];
         foreach ($user->entitlements as $ent) {
             $sku = $ent->sku;
             $response['skus'][$sku->id] = [
 //                'cost' => $ent->cost,
                 'count' => isset($response['skus'][$sku->id]) ? $response['skus'][$sku->id]['count'] + 1 : 1,
             ];
         }
 
         return response()->json($response);
     }
 
     /**
      * Fetch user status (and reload setup process)
      *
      * @param int $id User identifier
      *
      * @return \Illuminate\Http\JsonResponse
      */
     public function status($id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         if (!$this->guard()->user()->canRead($user)) {
             return $this->errorResponse(403);
         }
 
         $response = self::statusInfo($user);
 
         if (!empty(request()->input('refresh'))) {
             $updated = false;
             $last_step = 'none';
 
             foreach ($response['process'] as $idx => $step) {
                 $last_step = $step['label'];
 
                 if (!$step['state']) {
                     if (!$this->execProcessStep($user, $step['label'])) {
                         break;
                     }
 
                     $updated = true;
                 }
             }
 
             if ($updated) {
                 $response = self::statusInfo($user);
             }
 
             $success = $response['isReady'];
             $suffix = $success ? 'success' : 'error-' . $last_step;
 
             $response['status'] = $success ? 'success' : 'error';
             $response['message'] = \trans('app.process-' . $suffix);
         }
 
         $response = array_merge($response, self::userStatuses($user));
 
         return response()->json($response);
     }
 
     /**
      * User status (extended) information
      *
      * @param \App\User $user User object
      *
      * @return array Status information
      */
     public static function statusInfo(User $user): array
     {
         $process = [];
         $steps = [
             'user-new' => true,
             'user-ldap-ready' => $user->isLdapReady(),
             'user-imap-ready' => $user->isImapReady(),
         ];
 
         // Create a process check list
         foreach ($steps as $step_name => $state) {
             $step = [
                 'label' => $step_name,
                 'title' => \trans("app.process-{$step_name}"),
                 'state' => $state,
             ];
 
             $process[] = $step;
         }
 
         list ($local, $domain) = explode('@', $user->email);
         $domain = Domain::where('namespace', $domain)->first();
 
         // If that is not a public domain, add domain specific steps
         if ($domain && !$domain->isPublic()) {
             $domain_status = DomainsController::statusInfo($domain);
             $process = array_merge($process, $domain_status['process']);
         }
 
         $all = count($process);
         $checked = count(array_filter($process, function ($v) {
                 return $v['state'];
         }));
 
         $state = $all === $checked ? 'done' : 'running';
 
         // After 180 seconds assume the process is in failed state,
         // this should unlock the Refresh button in the UI
         if ($all !== $checked && $user->created_at->diffInSeconds(Carbon::now()) > 180) {
             $state = 'failed';
         }
 
         // Check if the user is a controller of his wallet
         $isController = $user->canDelete($user);
         $hasCustomDomain = $user->wallet()->entitlements()
             ->where('entitleable_type', Domain::class)
             ->count() > 0;
 
         return [
             // TODO: This will change when we enable all users to create domains
             'enableDomains' => $isController && $hasCustomDomain,
             'enableUsers' => $isController,
             'enableWallets' => $isController,
             'process' => $process,
             'processState' => $state,
             'isReady' => $all === $checked,
         ];
     }
 
     /**
      * Create a new user record.
      *
      * @param \Illuminate\Http\Request $request The API request.
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function store(Request $request)
     {
         $current_user = $this->guard()->user();
         $owner = $current_user->wallet()->owner;
 
         if ($owner->id != $current_user->id) {
             return $this->errorResponse(403);
         }
 
         if ($error_response = $this->validateUserRequest($request, null, $settings)) {
             return $error_response;
         }
 
         if (empty($request->package) || !($package = \App\Package::find($request->package))) {
             $errors = ['package' => \trans('validation.packagerequired')];
             return response()->json(['status' => 'error', 'errors' => $errors], 422);
         }
 
         if ($package->isDomain()) {
             $errors = ['package' => \trans('validation.packageinvalid')];
             return response()->json(['status' => 'error', 'errors' => $errors], 422);
         }
 
         DB::beginTransaction();
 
         // Create user record
         $user = User::create([
                 'email' => $request->email,
                 'password' => $request->password,
         ]);
 
         $owner->assignPackage($package, $user);
 
         if (!empty($settings)) {
             $user->setSettings($settings);
         }
 
         if (!empty($request->aliases)) {
             $user->setAliases($request->aliases);
         }
 
         DB::commit();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-create-success'),
         ]);
     }
 
     /**
      * Update user data.
      *
      * @param \Illuminate\Http\Request $request The API request.
-     * @params string                  $id      User identifier
+     * @param string                   $id      User identifier
      *
      * @return \Illuminate\Http\JsonResponse The response
      */
     public function update(Request $request, $id)
     {
         $user = User::find($id);
 
         if (empty($user)) {
             return $this->errorResponse(404);
         }
 
         $current_user = $this->guard()->user();
 
         // TODO: Decide what attributes a user can change on his own profile
         if (!$current_user->canUpdate($user)) {
             return $this->errorResponse(403);
         }
 
         if ($error_response = $this->validateUserRequest($request, $user, $settings)) {
             return $error_response;
         }
 
         // Entitlements, only controller can do that
         if ($request->skus !== null && !$current_user->canDelete($user)) {
             return $this->errorResponse(422, "You have no permission to change entitlements");
         }
 
         DB::beginTransaction();
 
         $this->updateEntitlements($user, $request->skus);
 
         if (!empty($settings)) {
             $user->setSettings($settings);
         }
 
         if (!empty($request->password)) {
             $user->password = $request->password;
             $user->save();
         }
 
         if (isset($request->aliases)) {
             $user->setAliases($request->aliases);
         }
 
         // TODO: Make sure that UserUpdate job is created in case of entitlements update
         //       and no password change. So, for example quota change is applied to LDAP
         // TODO: Review use of $user->save() in the above context
 
         DB::commit();
 
         return response()->json([
                 'status' => 'success',
                 'message' => __('app.user-update-success'),
         ]);
     }
 
     /**
      * Get the guard to be used during authentication.
      *
      * @return \Illuminate\Contracts\Auth\Guard
      */
     public function guard()
     {
         return Auth::guard();
     }
 
     /**
      * Update user entitlements.
      *
      * @param \App\User $user  The user
      * @param array     $rSkus List of SKU IDs requested for the user in the form [id=>qty]
      */
     protected function updateEntitlements(User $user, $rSkus)
     {
         if (!is_array($rSkus)) {
             return;
         }
 
         // list of skus, [id=>obj]
         $skus = Sku::all()->mapWithKeys(
             function ($sku) {
                 return [$sku->id => $sku];
             }
         );
 
         // existing entitlement's SKUs
         $eSkus = [];
 
         $user->entitlements()->groupBy('sku_id')
             ->selectRaw('count(*) as total, sku_id')->each(
                 function ($e) use (&$eSkus) {
                     $eSkus[$e->sku_id] = $e->total;
                 }
             );
 
         foreach ($skus as $skuID => $sku) {
             $e = array_key_exists($skuID, $eSkus) ? $eSkus[$skuID] : 0;
             $r = array_key_exists($skuID, $rSkus) ? $rSkus[$skuID] : 0;
 
             if ($sku->handler_class == \App\Handlers\Mailbox::class) {
                 if ($r != 1) {
                     throw new \Exception("Invalid quantity of mailboxes");
                 }
             }
 
             if ($e > $r) {
                 // remove those entitled more than existing
                 $user->removeSku($sku, ($e - $r));
             } elseif ($e < $r) {
                 // add those requested more than entitled
                 $user->assignSku($sku, ($r - $e));
             }
         }
     }
 
     /**
      * Create a response data array for specified user.
      *
      * @param \App\User $user User object
      *
      * @return array Response data
      */
     public static function userResponse(User $user): array
     {
         $response = $user->toArray();
 
         // Settings
         $response['settings'] = [];
         foreach ($user->settings()->whereIn('key', self::USER_SETTINGS)->get() as $item) {
             $response['settings'][$item->key] = $item->value;
         }
 
         // Aliases
         $response['aliases'] = [];
         foreach ($user->aliases as $item) {
             $response['aliases'][] = $item->alias;
         }
 
         // Status info
         $response['statusInfo'] = self::statusInfo($user);
 
         $response = array_merge($response, self::userStatuses($user));
 
         // Add more info to the wallet object output
         $map_func = function ($wallet) use ($user) {
             $result = $wallet->toArray();
 
             if ($wallet->discount) {
                 $result['discount'] = $wallet->discount->discount;
                 $result['discount_description'] = $wallet->discount->description;
             }
 
             if ($wallet->user_id != $user->id) {
                 $result['user_email'] = $wallet->owner->email;
             }
 
             $provider = \App\Providers\PaymentProvider::factory($wallet);
             $result['provider'] = $provider->name();
 
             return $result;
         };
 
         // Information about wallets and accounts for access checks
         $response['wallets'] = $user->wallets->map($map_func)->toArray();
         $response['accounts'] = $user->accounts->map($map_func)->toArray();
         $response['wallet'] = $map_func($user->wallet());
 
         return $response;
     }
 
     /**
      * Prepare user statuses for the UI
      *
      * @param \App\User $user User object
      *
      * @return array Statuses array
      */
     protected static function userStatuses(User $user): array
     {
         return [
             'isImapReady' => $user->isImapReady(),
             'isLdapReady' => $user->isLdapReady(),
             'isSuspended' => $user->isSuspended(),
             'isActive' => $user->isActive(),
             'isDeleted' => $user->isDeleted() || $user->trashed(),
         ];
     }
 
     /**
      * Validate user input
      *
      * @param \Illuminate\Http\Request $request  The API request.
      * @param \App\User|null           $user     User identifier
      * @param array                    $settings User settings (from the request)
      *
      * @return \Illuminate\Http\JsonResponse|null The error response on error
      */
     protected function validateUserRequest(Request $request, $user, &$settings = [])
     {
         $rules = [
             'external_email' => 'nullable|email',
             'phone' => 'string|nullable|max:64|regex:/^[0-9+() -]+$/',
             'first_name' => 'string|nullable|max:128',
             'last_name' => 'string|nullable|max:128',
             'organization' => 'string|nullable|max:512',
             'billing_address' => 'string|nullable|max:1024',
             'country' => 'string|nullable|alpha|size:2',
             'currency' => 'string|nullable|alpha|size:3',
             'aliases' => 'array|nullable',
         ];
 
         if (empty($user) || !empty($request->password) || !empty($request->password_confirmation)) {
             $rules['password'] = 'required|min:4|max:2048|confirmed';
         }
 
         $errors = [];
 
         // Validate input
         $v = Validator::make($request->all(), $rules);
 
         if ($v->fails()) {
             $errors = $v->errors()->toArray();
         }
 
         $controller = $user ? $user->wallet()->owner : $this->guard()->user();
 
         // For new user validate email address
         if (empty($user)) {
             $email = $request->email;
 
             if (empty($email)) {
                 $errors['email'] = \trans('validation.required', ['attribute' => 'email']);
             } elseif ($error = self::validateEmail($email, $controller, false)) {
                 $errors['email'] = $error;
             }
         }
 
         // Validate aliases input
         if (isset($request->aliases)) {
             $aliases = [];
             $existing_aliases = $user ? $user->aliases()->get()->pluck('alias')->toArray() : [];
 
             foreach ($request->aliases as $idx => $alias) {
                 if (is_string($alias) && !empty($alias)) {
                     // Alias cannot be the same as the email address (new user)
                     if (!empty($email) && Str::lower($alias) == Str::lower($email)) {
                         continue;
                     }
 
                     // validate new aliases
                     if (
                         !in_array($alias, $existing_aliases)
                         && ($error = self::validateEmail($alias, $controller, true))
                     ) {
                         if (!isset($errors['aliases'])) {
                             $errors['aliases'] = [];
                         }
                         $errors['aliases'][$idx] = $error;
                         continue;
                     }
 
                     $aliases[] = $alias;
                 }
             }
 
             $request->aliases = $aliases;
         }
 
         if (!empty($errors)) {
             return response()->json(['status' => 'error', 'errors' => $errors], 422);
         }
 
         // Update user settings
         $settings = $request->only(array_keys($rules));
         unset($settings['password'], $settings['aliases'], $settings['email']);
 
         return null;
     }
 
     /**
      * Execute (synchronously) specified step in a user setup process.
      *
      * @param \App\User $user User object
      * @param string    $step Step identifier (as in self::statusInfo())
      *
      * @return bool True if the execution succeeded, False otherwise
      */
     public static function execProcessStep(User $user, string $step): bool
     {
         try {
             if (strpos($step, 'domain-') === 0) {
                 list ($local, $domain) = explode('@', $user->email);
                 $domain = Domain::where('namespace', $domain)->first();
 
                 return DomainsController::execProcessStep($domain, $step);
             }
 
             switch ($step) {
                 case 'user-ldap-ready':
                     // User not in LDAP, create it
                     $job = new \App\Jobs\UserCreate($user);
                     $job->handle();
                     return $user->isLdapReady();
 
                 case 'user-imap-ready':
                     // User not in IMAP? Verify again
                     $job = new \App\Jobs\UserVerify($user);
                     $job->handle();
                     return $user->isImapReady();
             }
         } catch (\Exception $e) {
             \Log::error($e);
         }
 
         return false;
     }
 
     /**
      * Email address (login or alias) validation
      *
      * @param string    $email    Email address
      * @param \App\User $user     The account owner
      * @param bool      $is_alias The email is an alias
      *
      * @return string Error message on validation error
      */
     public static function validateEmail(
         string $email,
         \App\User $user,
         bool $is_alias = false
     ): ?string {
         $attribute = $is_alias ? 'alias' : 'email';
 
         if (strpos($email, '@') === false) {
             return \trans('validation.entryinvalid', ['attribute' => $attribute]);
         }
 
         list($login, $domain) = explode('@', Str::lower($email));
 
         if (strlen($login) === 0 || strlen($domain) === 0) {
             return \trans('validation.entryinvalid', ['attribute' => $attribute]);
         }
 
         // Check if domain exists
         $domain = Domain::where('namespace', $domain)->first();
 
         if (empty($domain)) {
             return \trans('validation.domaininvalid');
         }
 
         // Validate login part alone
         $v = Validator::make(
             [$attribute => $login],
             [$attribute => ['required', new UserEmailLocal(!$domain->isPublic())]]
         );
 
         if ($v->fails()) {
             return $v->errors()->toArray()[$attribute][0];
         }
 
         // Check if it is one of domains available to the user
         $domains = \collect($user->domains())->pluck('namespace')->all();
 
         if (!in_array($domain->namespace, $domains)) {
             return \trans('validation.entryexists', ['attribute' => 'domain']);
         }
 
         // Check if a user/alias with specified address already exists
         // Allow assigning the same alias to a user in the same group account,
         // but only for non-public domains
         // Allow an alias in a custom domain to an address that was a user before
         if ($exists = User::emailExists($email, true, $alias_exists, $is_alias && !$domain->isPublic())) {
             if (
                 !$is_alias
                 || !$alias_exists
                 || $domain->isPublic()
                 || $exists->wallet()->user_id != $user->id
             ) {
                 return \trans('validation.entryexists', ['attribute' => $attribute]);
             }
         }
 
         return null;
     }
 }