'required', 'body' => 'required', 'email_from_address' => 'sometimes|nullable|email', 'email_test' => 'sometimes|nullable|email', 'email_host' => 'required', 'email_port' => 'required', 'email_username' => 'required', 'email_password' => 'required', 'email_from_name' => 'required', ]; } }