Free Email Generator — Random Disposable Email Addresses

Generate a random email address instantly across multiple system domains. Real-time inbox, no signup, fully disposable.

Your temporary email address
@
Inbox0

Waiting for messages

Use the address above on any signup form. New mail shows up here instantly.

An email generator gives you a fresh, working email address in one click — no signup, no forms, no account. Mail.cx generates a random local part on a free, public domain that actually receives email in real time, so you can complete verification steps without exposing your real inbox.

What is an email generator?

An email generator (or random email maker, fake email generator, disposable email generator) creates a working email address on the fly — usually paired with a temporary inbox so you can actually receive messages sent to it. Unlike a fake-looking address that goes nowhere, the address mail.cx generates is real: emails sent to it arrive in your browser within a second of being sent.

Random or custom — both work

You can take whatever random local part mail.cx hands you, or click into the address bar and type your own (any letters, digits, dots, dashes — same rules as a real email). Custom local parts make it easier to remember which signup an address goes to, without changing how the address works.

Multiple system domains

mail.cx rotates several public domains so you're not stuck on a single one (which makes the address less obviously disposable to filters). Click the domain selector under the generated address to swap.

Frequently asked questions

  • Are the generated emails real?

    Yes. Each generated address can receive real emails in real time. Use the address on any signup form, and the resulting verification email lands in your browser within a second.

  • Is there a limit on how many addresses I can generate?

    No hard limit for anonymous use. Heavy automation should register a free account and use API tokens to stay within rate limits cleanly.

  • How long do generated addresses last?

    1 hour for everyone. Pro adds custom-domain support with 7-day retention on emails sent to your own domain — but the generator-style throwaway addresses on this page are always 1 hour.

  • Can I pick my own local part?

    Yes. Click the address to edit and type anything that fits standard email rules (letters, digits, dots, dashes).

  • Do generated addresses send email too?

    No — mail.cx is receive-only. You can't send mail from generated addresses. They exist to receive verification codes, signup confirmations, and one-time notifications.

Need a permanent inbox or your own domain?

Pro adds custom domains, REST API access, longer retention, and webhooks for teams and developers.