Most self-hosted webmail options have outdated interfaces and poor mobile support, while hosted providers require surrendering email data to third parties. Building a reliable, production-grade email client from scratch introduced several hard problems: preventing duplicate email sends, handling token expiry gracefully without wiping user accounts, ensuring email delivery wasn't silently broken by DNS misconfiguration, and providing a desktop-like experience without the maintenance burden of additional apps.

CleanMail addresses these by combining a clean, responsive React UI with a robust Node.js backend that speaks directly to IMAP/SMTP servers. Token expiry now prompts re-authentication instead of removing accounts. Email sending uses proper state management to block duplicate submissions. DNS was tuned to eliminate dual PTR records that confused receiving mail servers. Electron was dropped entirely in favor of a PWA, reducing maintenance complexity while still offering installability across platforms. The result is a polished, self-hosted email experience deployed in production at mail.webbetas.com.