Free Temporary Email
Use a temporary email to protect your real inbox from spam. Get a free temporary email instantly, receive messages in real time, no signup required.
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What is disposable temporary email?
A disposable email — also called temp mail or temporary email — is a short-lived inbox you can hand out instead of your real address. mail.cx generates a disposable email instantly, pushes new mail to your browser in real time, and deletes everything when the inbox expires. No signup, no payment.
Use a temp mail address anywhere a form demands your email: signups, downloads, free trials, forum comments. The confirmation lands in your temporary email; spam, newsletters, retargeting, and phishing never reach your real inbox.
Free temporary email
Free temp mail — the web inbox works without signup; register to unlock custom domains and API access.
Web inbox, always free
Open and use, no signup. Pick your own username or generate one randomly. Mail kept 1 hour.
Free extras when you register
Receive mail on your own custom domain and generate API tokens — both free. Each referred signup permanently adds +100 req/day quota (stacks per invite).
API quota
10 req/s per token; 500 / day base quota plus stacked invite bonuses. Long-poll concurrency: 1 / token, 10 / address, server-fixed 25 s hold.
How mail.cx is different
Three things you should know about our temporary email service before you pick one.
Real-time push, not polling
Most temporary email services check the server every few seconds. mail.cx uses Server-Sent Events to stream new mail to your browser the instant it lands — sub-second delivery instead of 5–30 second polling delay.
Self-destruct, not forwarded
Email aliases forward to your real inbox forever and stay tied to your real identity. A mail.cx temp mail inbox is independent, expires automatically, and leaves no link back to a real account. Use it and walk away.
Free, no ads, no signup
mail.cx is fully free for personal use. The inbox carries no ads, no tracker, no signup, no credit card — every disposable email feature you actually need, at zero cost.
Instant
Address ready in one click. Zero signup, zero setup.
Private
Inboxes self-destruct. We never log, sell, or share your mail.
Real-time
SSE pushes new mail to your browser the moment it arrives.
Developer-ready
Free REST API for AI agents and signup automation.
From the blog
View all posts →Free Disposable Email in 2026: The Complete Guide
Disposable email solves a simple problem: every signup form on the modern web wants your address. Here's how to use a throwaway one — and what to look for in 2026.
How to Use a Disposable Email for ChatGPT
Want to try ChatGPT without giving OpenAI your real email? A disposable email works for the free tier signup. Here's the practical walkthrough.
How to Use a Disposable Email for Reddit
Reddit needs an email for signup, but tying your real address to a throwaway account defeats the point of pseudonymous posting. Disposable email solves it.
How to Use a Disposable Email for Discord
Discord wants an email and increasingly a phone number too. Disposable email handles the email side cleanly — phone is harder, but here's the workflow that works.