Great overview of HELO for local email testing! It's a lightweight desktop app that intercepts outgoing emails via a local SMTP server, allowing you to preview and debug them before they reach real recipients. HELO offers features like unlimited inboxes, link validation, spam scoring, and even email forwarding for client reviews. It's especially handy for Laravel developers, with seamless integration and optional helper packages for enhanced debugging. For local development, tools like ServBay can further streamline your workflow by simplifying environment setups. Definitely worth considering if you're looking to improve your email testing process.