|string> */ public function rules(): array { return [ 'items' => 'required|array|min:1', 'items.0.From.Address' => 'required|email', 'items.0.To.*.Address' => 'required|email|in:mailing@reply.uwil.fr', 'items.0.ExtractedMarkdownMessage' => 'required|string|min:10', ]; } }