Show HN: MephistoMail – A RAM-only, tracker-free disposable email client

[benmxrt]

Hi HN,

I got frustrated with the current landscape of 10-minute mail services. They are often full of ads, Google Analytics trackers, and clunky interfaces—completely defeating the purpose of a "privacy" tool.

I built MephistoMail as a clean, RAM-only frontend alternative. It uses the mail.tm/mail.gw APIs under the hood for actual inbox mapping but handles everything on the client side in volatile memory. If you close the tab, the session is gone. Zero logs are kept on our end.

Tech stack: React 18, Vite, Tailwind CSS, Lucide.

Would love to hear your thoughts, roasts, and suggestions!

Demo: https://mephistomail.site Repo: https://github.com/jokallame350-lang/temp-mailmephisto

[mike-cardwell]

I get "Minified React error #300; visit https://reactjs.org/docs/error-decoder.html?invariant=300 for the full message or use the non-minified dev environment for full errors and additional helpful warnings." when trying to view emails from https://www.emailprivacytester.com

[benmxrt]

Thanks for reporting this! The issue was caused by the email HTML content not being properly normalized before rendering - some emails from services like emailprivacytester.com return complex nested structures that triggered a React rendering error. I've pushed a fix that safely handles all edge cases (non-string HTML arrays, nested objects in header fields, etc.). Should be live shortly. Really appreciate you testing with edge cases like this!