MailOnce is a private temporary email service for fast signups, OTP codes and email verification without exposing your real inbox. Each inbox is private to your browser session instead of publicly accessible. Create random or custom temporary addresses, receive emails in real time, detect OTP codes and verification links, and manage everything from your browser. No account is required for basic use. Built for everyday privacy and developer testing.
I originally built MailOnce because I wanted a simpler way to handle temporary inboxes for signups, OTPs and verification emails without exposing a real email address.
What surprised me after launching was how quickly the use case expanded beyond developers and testing. Talking to early users made me realize that many people simply want more privacy when trying a new website or service.
That feedback already changed how I describe and think about MailOnce.
The goal is simple: private temporary inboxes, fast email delivery, easy OTP and verification link detection, and as little friction as possible.
This is still the beginning, so feedback is genuinely useful. If you try MailOnce, tell me what you like, what feels unnecessary, or what you'd change.