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My inbox used to be a graveyard đź’€

As a founder, I sign up for 50+ new tools every month to research the market. The result? My primary email became unusable. Phishing, spam, "follow-ups"... you name it.

Standard spam filters weren't enough. So I spent the weekend building my own "Corporate Email Firewall".

The concept (Sentry):
Instead of giving out my real email, I use AI-shielded aliases.

  1. Incoming mail hits a Cloudflare Worker.
  2. Gemini 2.0 AI analyzes the intent in <500ms.
  3. Spam/Phishing? → Blocked instantly
  4. Real Lead? → Forwarded to my clean inbox

The best part?
Last week, the system flagged a "Leak Event". I saw exactly which SaaS vendor sold my data because the spam started hitting a unique alias I only used for them.

Screenshot
https://media.licdn.com/dms/image/v2/D4D22AQFqxypwmK9UGA/feedshare-shrink_800/B4DZv0r.dCKEAg-/0/1769336727600?e=1770854400&v=beta&t=Mi2fcwbWlRfNaX8CoG9tBgcRty0vs5MTtfD-n_5DAUs

I'm opening up Sentry for a small Beta group (10 spots).

Want to shield your inbox?

Drop a comment "Shield" below, and I'll DM you an invite.

#SaaS hashtag#CyberSecurity hashtag#BuildInPublic hashtag#AI hashtag#Productivity

on January 25, 2026
  1. 1

    Great product!
    I recently built a small tool that can automatically mark emails as read when I push a button on a Gmail notification — it saved me a surprising amount of time I used to spend opening Gmail just to clear new messages.

    Unfortunately, I can’t release it publicly because it relies on the sensitive “mark as read” API, which requires additional Google verification and significant costs.

    A clean inbox really is underrated. Thanks for sharing, and best of luck with the product!

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