diff --git a/docs/getting_started/install.md b/docs/getting_started/install.md
index a8ec9d8d9..c608bd3f3 100644
--- a/docs/getting_started/install.md
+++ b/docs/getting_started/install.md
@@ -54,9 +54,12 @@ Require it with an explicit version constraint allowing its desired stability.
 
 ## Initial Setup
 
+There are a few setup items to do before you can start using Shield in
+your project.
+
 ### Command Setup
 
-1. Run the following command. This command handles steps 1-5 of *Manual Setup* and runs the migrations.
+1. Run the following command. This command handles steps 1-6 of *Manual Setup*.
 
     ```console
     php spark shield:setup
@@ -67,36 +70,8 @@ Require it with an explicit version constraint allowing its desired stability.
         If you want to customize table names, you must change the table names before running database migrations.
         See [Customizing Table Names](../customization/table_names.md).
 
-2. Configure **app/Config/Email.php** to allow Shield to send emails with the [Email Class](https://codeigniter.com/user_guide/libraries/email.html).
-
-    ```php
-    <?php
-
-    namespace Config;
-
-    use CodeIgniter\Config\BaseConfig;
-
-    class Email extends BaseConfig
-    {
-        /**
-         * @var string
-         */
-        public $fromEmail = 'your_mail@example.com';
-
-        /**
-         * @var string
-         */
-        public $fromName = 'your name';
-
-        // ...
-    }
-    ```
-
 ### Manual Setup
 
-There are a few setup items to do before you can start using Shield in
-your project.
-
 1. Copy the **Auth.php**, **AuthGroups.php**, and **AuthToken.php** from **vendor/codeigniter4/shield/src/Config/** into your project's config folder and update the namespace to `Config`. You will also need to have these classes extend the original classes. See the example below. These files contain all the settings, group, and permission information for your application and will need to be modified to meet the needs of your site.
 
     ```php
@@ -138,7 +113,24 @@ your project.
 
 4. **Security Setup** Set `Config\Security::$csrfProtection` to `'session'` for security reasons, if you use Session Authenticator.
 
-5. **Migration** Run the migrations.
+5. Configure **app/Config/Email.php** to allow Shield to send emails with the [Email Class](https://codeigniter.com/user_guide/libraries/email.html).
+
+    ```php
+    <?php
+
+    namespace Config;
+
+    use CodeIgniter\Config\BaseConfig;
+
+    class Email extends BaseConfig
+    {
+        public string $fromEmail  = 'your_mail@example.com';
+        public string $fromName   = 'your name';
+        // ...
+    }
+    ```
+
+6. **Migration** Run the migrations.
 
     !!! note
 
@@ -155,28 +147,3 @@ your project.
 
     1. Remove sample migration files in **tests/_support/Database/Migrations/**
     2. Or install `sqlite3` php extension
-
-6. Configure **app/Config/Email.php** to allow Shield to send emails.
-
-    ```php
-    <?php
-
-    namespace Config;
-
-    use CodeIgniter\Config\BaseConfig;
-
-    class Email extends BaseConfig
-    {
-        /**
-         * @var string
-         */
-        public $fromEmail = 'your_mail@example.com';
-
-        /**
-         * @var string
-         */
-        public $fromName = 'your name';
-
-        // ...
-    }
-    ```
diff --git a/rector.php b/rector.php
index 862da0f20..12a24007d 100644
--- a/rector.php
+++ b/rector.php
@@ -20,6 +20,7 @@
 use Rector\CodingStyle\Rector\FuncCall\CountArrayToEmptyArrayComparisonRector;
 use Rector\Config\RectorConfig;
 use Rector\Core\ValueObject\PhpVersion;
+use Rector\DeadCode\Rector\Cast\RecastingRemovalRector;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector;
 use Rector\DeadCode\Rector\If_\UnwrapFutureCompatibleIfPhpVersionRector;
 use Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector;
@@ -109,6 +110,11 @@
             __DIR__ . '/tests/Commands/UserModelGeneratorTest.php',
             __DIR__ . '/tests/Controllers/LoginTest.php',
         ],
+
+        RecastingRemovalRector::class => [
+            // To check old Email Config file
+            __DIR__ . '/src/Commands/Setup.php',
+        ],
     ]);
 
     // auto import fully qualified class names
diff --git a/src/Commands/BaseCommand.php b/src/Commands/BaseCommand.php
new file mode 100644
index 000000000..2b30856f0
--- /dev/null
+++ b/src/Commands/BaseCommand.php
@@ -0,0 +1,89 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodeIgniter\Shield\Commands;
+
+use CodeIgniter\CLI\BaseCommand as FrameworkBaseCommand;
+use CodeIgniter\CLI\Commands;
+use CodeIgniter\Shield\Commands\Utils\InputOutput;
+use Psr\Log\LoggerInterface;
+
+abstract class BaseCommand extends FrameworkBaseCommand
+{
+    protected static ?InputOutput $io = null;
+
+    /**
+     * The group the command is lumped under
+     * when listing commands.
+     *
+     * @var string
+     */
+    protected $group = 'Shield';
+
+    public function __construct(LoggerInterface $logger, Commands $commands)
+    {
+        parent::__construct($logger, $commands);
+
+        $this->ensureInputOutput();
+    }
+
+    /**
+     * Asks the user for input.
+     *
+     * @param string       $field      Output "field" question
+     * @param array|string $options    String to a default value, array to a list of options (the first option will be the default value)
+     * @param array|string $validation Validation rules
+     *
+     * @return string The user input
+     */
+    protected function prompt(string $field, $options = null, $validation = null): string
+    {
+        return self::$io->prompt($field, $options, $validation);
+    }
+
+    /**
+     * Outputs a string to the cli on its own line.
+     */
+    protected function write(
+        string $text = '',
+        ?string $foreground = null,
+        ?string $background = null
+    ): void {
+        self::$io->write($text, $foreground, $background);
+    }
+
+    /**
+     * Outputs an error to the CLI using STDERR instead of STDOUT
+     */
+    protected function error(
+        string $text,
+        string $foreground = 'light_red',
+        ?string $background = null
+    ): void {
+        self::$io->error($text, $foreground, $background);
+    }
+
+    protected function ensureInputOutput(): void
+    {
+        if (self::$io === null) {
+            self::$io = new InputOutput();
+        }
+    }
+
+    /**
+     * @internal Testing purpose only
+     */
+    public static function setInputOutput(InputOutput $io): void
+    {
+        self::$io = $io;
+    }
+
+    /**
+     * @internal Testing purpose only
+     */
+    public static function resetInputOutput(): void
+    {
+        self::$io = null;
+    }
+}
diff --git a/src/Commands/Setup.php b/src/Commands/Setup.php
index ce052b714..a39e7de10 100644
--- a/src/Commands/Setup.php
+++ b/src/Commands/Setup.php
@@ -4,22 +4,15 @@
 
 namespace CodeIgniter\Shield\Commands;
 
-use CodeIgniter\CLI\BaseCommand;
 use CodeIgniter\CLI\CLI;
 use CodeIgniter\Commands\Database\Migrate;
 use CodeIgniter\Shield\Commands\Setup\ContentReplacer;
+use CodeIgniter\Test\Filters\CITestStreamFilter;
+use Config\Email as EmailConfig;
 use Config\Services;
 
 class Setup extends BaseCommand
 {
-    /**
-     * The group the command is lumped under
-     * when listing commands.
-     *
-     * @var string
-     */
-    protected $group = 'Shield';
-
     /**
      * The Command's name
      *
@@ -89,6 +82,7 @@ private function publishConfig(): void
         $this->setupRoutes();
 
         $this->setSecurityCSRF();
+        $this->setupEmail();
 
         $this->runMigrations();
     }
@@ -166,18 +160,18 @@ protected function writeFile(string $file, string $content): void
 
             if (
                 ! $overwrite
-                && CLI::prompt("  File '{$cleanPath}' already exists in destination. Overwrite?", ['n', 'y']) === 'n'
+                && $this->prompt("  File '{$cleanPath}' already exists in destination. Overwrite?", ['n', 'y']) === 'n'
             ) {
-                CLI::error("  Skipped {$cleanPath}. If you wish to overwrite, please use the '-f' option or reply 'y' to the prompt.");
+                $this->error("  Skipped {$cleanPath}. If you wish to overwrite, please use the '-f' option or reply 'y' to the prompt.");
 
                 return;
             }
         }
 
         if (write_file($path, $content)) {
-            CLI::write(CLI::color('  Created: ', 'green') . $cleanPath);
+            $this->write(CLI::color('  Created: ', 'green') . $cleanPath);
         } else {
-            CLI::error("  Error creating {$cleanPath}.");
+            $this->error("  Error creating {$cleanPath}.");
         }
     }
 
@@ -195,20 +189,20 @@ protected function add(string $file, string $code, string $pattern, string $repl
         $output = $this->replacer->add($content, $code, $pattern, $replace);
 
         if ($output === true) {
-            CLI::error("  Skipped {$cleanPath}. It has already been updated.");
+            $this->error("  Skipped {$cleanPath}. It has already been updated.");
 
             return;
         }
         if ($output === false) {
-            CLI::error("  Error checking {$cleanPath}.");
+            $this->error("  Error checking {$cleanPath}.");
 
             return;
         }
 
         if (write_file($path, $output)) {
-            CLI::write(CLI::color('  Updated: ', 'green') . $cleanPath);
+            $this->write(CLI::color('  Updated: ', 'green') . $cleanPath);
         } else {
-            CLI::error("  Error updating {$cleanPath}.");
+            $this->error("  Error updating {$cleanPath}.");
         }
     }
 
@@ -232,12 +226,12 @@ private function replace(string $file, array $replaces): bool
         }
 
         if (write_file($path, $output)) {
-            CLI::write(CLI::color('  Updated: ', 'green') . $cleanPath);
+            $this->write(CLI::color('  Updated: ', 'green') . $cleanPath);
 
             return true;
         }
 
-        CLI::error("  Error updating {$cleanPath}.");
+        $this->error("  Error updating {$cleanPath}.");
 
         return false;
     }
@@ -287,7 +281,7 @@ private function setSecurityCSRF(): void
         $cleanPath = clean_path($path);
 
         if (! is_file($path)) {
-            CLI::error("  Not found file '{$cleanPath}'.");
+            $this->error("  Not found file '{$cleanPath}'.");
 
             return;
         }
@@ -297,35 +291,102 @@ private function setSecurityCSRF(): void
 
         // check $csrfProtection = 'session'
         if ($output === $content) {
-            CLI::write(CLI::color('  Security Setup: ', 'green') . 'Everything is fine.');
+            $this->write(CLI::color('  Security Setup: ', 'green') . 'Everything is fine.');
 
             return;
         }
 
         if (write_file($path, $output)) {
-            CLI::write(CLI::color('  Updated: ', 'green') . "We have updated file '{$cleanPath}' for security reasons.");
+            $this->write(CLI::color('  Updated: ', 'green') . "We have updated file '{$cleanPath}' for security reasons.");
         } else {
-            CLI::error("  Error updating file '{$cleanPath}'.");
+            $this->error("  Error updating file '{$cleanPath}'.");
+        }
+    }
+
+    private function setupEmail(): void
+    {
+        $file = 'Config/Email.php';
+
+        $path      = $this->distPath . $file;
+        $cleanPath = clean_path($path);
+
+        if (! is_file($path)) {
+            $this->error("  Not found file '{$cleanPath}'.");
+
+            return;
+        }
+
+        $config    = config(EmailConfig::class);
+        $fromEmail = (string) $config->fromEmail; // Old Config may return null.
+        $fromName  = (string) $config->fromName;
+
+        if ($fromEmail !== '' && $fromName !== '') {
+            $this->write(CLI::color('  Email Setup: ', 'green') . 'Everything is fine.');
+
+            return;
+        }
+
+        $content = file_get_contents($path);
+        $output  = $content;
+
+        if ($fromEmail === '') {
+            $set = $this->prompt('  The required Config\Email::$fromEmail is not set. Do you set now?', ['y', 'n']);
+
+            if ($set === 'y') {
+                // Input from email
+                $fromEmail = $this->prompt('  What is your email?', null, 'required|valid_email');
+
+                $pattern = '/^    public .*\$fromEmail\s+= \'\';/mu';
+                $replace = '    public string $fromEmail  = \'' . $fromEmail . '\';';
+                $output  = preg_replace($pattern, $replace, $content);
+            }
+        }
+
+        if ($fromName === '') {
+            $set = $this->prompt('  The required Config\Email::$fromName is not set. Do you set now?', ['y', 'n']);
+
+            if ($set === 'y') {
+                $fromName = $this->prompt('  What is your name?', null, 'required');
+
+                $pattern = '/^    public .*\$fromName\s+= \'\';/mu';
+                $replace = '    public string $fromName   = \'' . $fromName . '\';';
+                $output  = preg_replace($pattern, $replace, $output);
+            }
+        }
+
+        if (write_file($path, $output)) {
+            $this->write(CLI::color('  Updated: ', 'green') . $cleanPath);
+        } else {
+            $this->error("  Error updating file '{$cleanPath}'.");
         }
     }
 
     private function runMigrations(): void
     {
         if (
-            $this->cliPrompt('  Run `spark migrate --all` now?', ['y', 'n']) === 'n'
+            $this->prompt('  Run `spark migrate --all` now?', ['y', 'n']) === 'n'
         ) {
             return;
         }
 
         $command = new Migrate(Services::logger(), Services::commands());
+
+        // This is a hack for testing.
+        // @TODO Remove CITestStreamFilter and refactor when CI 4.5.0 or later is supported.
+        CITestStreamFilter::registration();
+        CITestStreamFilter::addOutputFilter();
+        CITestStreamFilter::addErrorFilter();
+
         $command->run(['all' => null]);
-    }
 
-    /**
-     * This method is for testing.
-     */
-    protected function cliPrompt(string $field, array $options): string
-    {
-        return CLI::prompt($field, $options);
+        CITestStreamFilter::removeOutputFilter();
+        CITestStreamFilter::removeErrorFilter();
+
+        // Capture the output, and write for testing.
+        // @TODO Remove CITestStreamFilter and refactor when CI 4.5.0 or later is supported.
+        $output = CITestStreamFilter::$buffer;
+        $this->write($output);
+
+        CITestStreamFilter::$buffer = '';
     }
 }
diff --git a/src/Commands/User.php b/src/Commands/User.php
index 4a2d1b1e1..e5d42daa9 100644
--- a/src/Commands/User.php
+++ b/src/Commands/User.php
@@ -4,11 +4,9 @@
 
 namespace CodeIgniter\Shield\Commands;
 
-use CodeIgniter\CLI\BaseCommand;
 use CodeIgniter\Shield\Authentication\Authenticators\Session;
 use CodeIgniter\Shield\Commands\Exceptions\BadInputException;
 use CodeIgniter\Shield\Commands\Exceptions\CancelException;
-use CodeIgniter\Shield\Commands\Utils\InputOutput;
 use CodeIgniter\Shield\Config\Auth;
 use CodeIgniter\Shield\Entities\User as UserEntity;
 use CodeIgniter\Shield\Exceptions\UserNotFoundException;
@@ -18,20 +16,11 @@
 
 class User extends BaseCommand
 {
-    private static ?InputOutput $io = null;
-    private array $validActions     = [
+    private array $validActions = [
         'create', 'activate', 'deactivate', 'changename', 'changeemail',
         'delete', 'password', 'list', 'addgroup', 'removegroup',
     ];
 
-    /**
-     * The group the command is lumped under
-     * when listing commands.
-     *
-     * @var string
-     */
-    protected $group = 'Shield';
-
     /**
      * Command's name
      *
@@ -137,7 +126,6 @@ class User extends BaseCommand
      */
     public function run(array $params): int
     {
-        $this->ensureInputOutput();
         $this->setTables();
         $this->setValidationRules();
 
@@ -251,31 +239,6 @@ private function setValidationRules(): void
         ];
     }
 
-    /**
-     * Asks the user for input.
-     *
-     * @param string       $field      Output "field" question
-     * @param array|string $options    String to a default value, array to a list of options (the first option will be the default value)
-     * @param array|string $validation Validation rules
-     *
-     * @return string The user input
-     */
-    private function prompt(string $field, $options = null, $validation = null): string
-    {
-        return self::$io->prompt($field, $options, $validation);
-    }
-
-    /**
-     * Outputs a string to the cli on its own line.
-     */
-    private function write(
-        string $text = '',
-        ?string $foreground = null,
-        ?string $background = null
-    ): void {
-        self::$io->write($text, $foreground, $background);
-    }
-
     /**
      * Create a new user
      *
@@ -692,27 +655,4 @@ private function findUser($question = '', $username = null, $email = null): User
 
         return $userModel->findById($user['id']);
     }
-
-    private function ensureInputOutput(): void
-    {
-        if (self::$io === null) {
-            self::$io = new InputOutput();
-        }
-    }
-
-    /**
-     * @internal Testing purpose only
-     */
-    public static function setInputOutput(InputOutput $io): void
-    {
-        self::$io = $io;
-    }
-
-    /**
-     * @internal Testing purpose only
-     */
-    public static function resetInputOutput(): void
-    {
-        self::$io = null;
-    }
 }
diff --git a/src/Commands/Utils/InputOutput.php b/src/Commands/Utils/InputOutput.php
index 5541eb7d3..5bbfb4474 100644
--- a/src/Commands/Utils/InputOutput.php
+++ b/src/Commands/Utils/InputOutput.php
@@ -32,4 +32,12 @@ public function write(
     ): void {
         CLI::write($text, $foreground, $background);
     }
+
+    /**
+     * Outputs an error to the CLI using STDERR instead of STDOUT
+     */
+    public function error(string $text, string $foreground = 'light_red', ?string $background = null): void
+    {
+        CLI::error($text, $foreground, $background);
+    }
 }
diff --git a/src/Test/MockInputOutput.php b/src/Test/MockInputOutput.php
index 8d268964a..e4ce93dda 100644
--- a/src/Test/MockInputOutput.php
+++ b/src/Test/MockInputOutput.php
@@ -53,6 +53,7 @@ public function prompt(string $field, $options = null, $validation = null): stri
 
         CITestStreamFilter::registration();
         CITestStreamFilter::addOutputFilter();
+        CITestStreamFilter::addErrorFilter();
 
         PhpStreamWrapper::register();
         PhpStreamWrapper::setContent($input);
@@ -83,6 +84,16 @@ public function write(
         $this->outputs[] = CITestStreamFilter::$buffer;
 
         CITestStreamFilter::removeOutputFilter();
+    }
+
+    public function error(string $text, string $foreground = 'light_red', ?string $background = null): void
+    {
+        CITestStreamFilter::registration();
+        CITestStreamFilter::addErrorFilter();
+
+        CLI::error($text, $foreground, $background);
+        $this->outputs[] = CITestStreamFilter::$buffer;
+
         CITestStreamFilter::removeErrorFilter();
     }
 }
diff --git a/tests/Commands/SetupTest.php b/tests/Commands/SetupTest.php
index 3333fac2e..648f0f12e 100644
--- a/tests/Commands/SetupTest.php
+++ b/tests/Commands/SetupTest.php
@@ -5,7 +5,8 @@
 namespace Tests\Commands;
 
 use CodeIgniter\Shield\Commands\Setup;
-use CodeIgniter\Test\Filters\CITestStreamFilter;
+use CodeIgniter\Shield\Test\MockInputOutput;
+use Config\Email as EmailConfig;
 use Config\Services;
 use org\bovigo\vfs\vfsStream;
 use Tests\Support\TestCase;
@@ -15,38 +16,42 @@
  */
 final class SetupTest extends TestCase
 {
-    protected function setUp(): void
-    {
-        parent::setUp();
-
-        CITestStreamFilter::registration();
-        CITestStreamFilter::addOutputFilter();
-    }
+    private ?MockInputOutput $io = null;
 
     protected function tearDown(): void
     {
         parent::tearDown();
 
-        CITestStreamFilter::removeOutputFilter();
-        CITestStreamFilter::removeErrorFilter();
+        Setup::resetInputOutput();
+    }
+
+    /**
+     * Set MockInputOutput and user inputs.
+     *
+     * @param array<int, string> $inputs User inputs
+     * @phpstan-param list<string> $inputs
+     */
+    private function setMockIo(array $inputs): void
+    {
+        $this->io = new MockInputOutput();
+        $this->io->setInputs($inputs);
+        Setup::setInputOutput($this->io);
     }
 
     public function testRun(): void
     {
-        $root = vfsStream::setup('root');
-        vfsStream::copyFromFileSystem(
-            APPPATH,
-            $root
-        );
-        $appFolder = $root->url() . '/';
+        // Set MockIO and your inputs.
+        $this->setMockIo([
+            'y',
+            'admin@example.com',
+            'y',
+            'Site Administrator',
+            'y',
+        ]);
+
+        $appFolder = $this->createFilesystem();
 
-        $command = $this->getMockBuilder(Setup::class)
-            ->setConstructorArgs([Services::logger(), Services::commands()])
-            ->onlyMethods(['cliPrompt'])
-            ->getMock();
-        $command
-            ->method('cliPrompt')
-            ->willReturn('y');
+        $command = new Setup(Services::logger(), Services::commands());
 
         $this->setPrivateProperty($command, 'distPath', $appFolder);
 
@@ -66,7 +71,7 @@ public function testRun(): void
         $security = file_get_contents($appFolder . 'Config/Security.php');
         $this->assertStringContainsString('$csrfProtection = \'session\';', $security);
 
-        $result = str_replace(["\033[0;32m", "\033[0m"], '', CITestStreamFilter::$buffer);
+        $result = $this->getOutputWithoutColorCode();
 
         $this->assertStringContainsString(
             '  Created: vfs://root/Config/Auth.php
@@ -74,7 +79,8 @@ public function testRun(): void
   Created: vfs://root/Config/AuthToken.php
   Updated: vfs://root/Controllers/BaseController.php
   Updated: vfs://root/Config/Routes.php
-  Updated: We have updated file \'vfs://root/Config/Security.php\' for security reasons.',
+  Updated: We have updated file \'vfs://root/Config/Security.php\' for security reasons.
+  Updated: vfs://root/Config/Email.php',
             $result
         );
         $this->assertStringContainsString(
@@ -82,4 +88,59 @@ public function testRun(): void
             $result
         );
     }
+
+    public function testRunEmailConfigIsFine(): void
+    {
+        // Set MockIO and your inputs.
+        $this->setMockIo(['y']);
+
+        $config            = config(EmailConfig::class);
+        $config->fromEmail = 'admin@example.com';
+        $config->fromName  = 'Site Admin';
+
+        $appFolder = $this->createFilesystem();
+
+        $command = new Setup(Services::logger(), Services::commands());
+
+        $this->setPrivateProperty($command, 'distPath', $appFolder);
+
+        $command->run([]);
+
+        $result = $this->getOutputWithoutColorCode();
+
+        $this->assertStringContainsString(
+            '  Created: vfs://root/Config/Auth.php
+  Created: vfs://root/Config/AuthGroups.php
+  Created: vfs://root/Config/AuthToken.php
+  Updated: vfs://root/Controllers/BaseController.php
+  Updated: vfs://root/Config/Routes.php
+  Updated: We have updated file \'vfs://root/Config/Security.php\' for security reasons.',
+            $result
+        );
+    }
+
+    /**
+     * @return string app folder path
+     */
+    private function createFilesystem(): string
+    {
+        $root = vfsStream::setup('root');
+        vfsStream::copyFromFileSystem(
+            APPPATH,
+            $root
+        );
+
+        return $root->url() . '/';
+    }
+
+    private function getOutputWithoutColorCode(): string
+    {
+        $output = str_replace(["\033[0;32m", "\033[0m"], '', $this->io->getOutputs());
+
+        if (is_windows()) {
+            $output = str_replace("\r\n", "\n", $output);
+        }
+
+        return $output;
+    }
 }