Copy the address
Your disposable email is generated the moment the page loads—tap Copy address and you're done. No forms, no account.
Disposable email, ready when you open the page
No signup—a temporary email address is already waiting. Verification codes land here and the burner inbox auto-deletes after 3 hours.
Preparing your address…
Inbox
0 Live deliverySign in without a password
Enter your real email to receive a 6-digit code—first verification creates your account. After login, create up to 100 forwarding aliases; mail forwards automatically and stays archived for 30 days.
Codes sometimes land in spam—check there if nothing arrives in a minute.
Enter verification code
Code sent
Didn't get it? Wait a minute before resending and check spam. Too many requests may be temporarily blocked.
Two-factor authentication
This account has 2FA enabled. Open your authenticator app and enter the current 6-digit code.
Forwarding aliases Mail sent to an alias forwards to your real inbox
@onceemail.com
Mail archive Last 30 days
Four numbers worth knowing upfront
No fine print buried in footnotes. Skim these four figures first; attachment rules and naming details live on the limits quick reference.
3 hoursPer session, extend anytime
24 hoursMaximum lifetime per address
100Permanent forwarding aliases
30 daysOnline archive for forwarded mail
Three steps to your first message
From opening the page to reading mail usually takes less than a minute.
Paste it anywhere
Use the burner address on sign-up forms, trial requests, whitepaper downloads—anywhere a site asks for email.
Come back to read
Mail appears in your inbox within seconds. When you're finished, hit Get a new address and start fresh.
Why use a disposable email when signing up
Every time you hand over your real address, it's exposure you can't take back. OnceEmail works like a fake email for signups—except it actually receives mail.
No signup, instant access
No account, phone number, or personal details—your temporary email address is waiting the second the page opens.
Anonymous by design
Sites only see a throwaway email address with no link to your real identity—true anonymous email, not a masked profile.
Mail arrives in real time
No manual refreshing—new messages show up within seconds so verification codes don't leave you waiting.
Survives refresh and device switches
Your token lives in the URL and local storage—open the link on another device and the same burner inbox comes back.
Auto-delete, no trail left behind
When the timer runs out, the address and every message vanish—no archive to dig through, privacy risk gone with it.
Receive-only, abuse-resistant
Addresses cannot send outbound mail—nobody can hijack them for spam blasts, which keeps delivery reliable for everyone.
Need mail long-term? Use forwarding aliases
A burner inbox fits one-off relationships. When a site still needs to reach you—billing, shipping updates, password resets—create a free forwarding alias. Senders see the alias; mail quietly lands in your real inbox.
- Up to 100 aliases—pause, resume, or delete any time
- 30-day online archive with spam filtering and one-click false-positive appeals
- Attachments kept for messages ≤50 MB; 50–100 MB forwards but attachments aren't stored on-site
One-time inbox or long-term forwarding?
Match the tool to the relationship: a one-time email address for single encounters, aliases for ongoing contact.
Disposable email
Just need a code, no footprint left behind
- Forum sign-ups, free trials, gated downloads—anything you'll never revisit
- Mail auto-deletes with the address after 3 hours, zero maintenance
- Domain blocked or done reading? Get a new address and move on
Permanent forwarding
Ongoing contact without exposing your real email
- Order updates, newsletters, accounts you actually use
- Mail forwards to your real inbox while senders only ever see the alias
- Spam hitting one alias? Pause it—the noise stops immediately
Frequently asked questions
Seven quick answers about disposable email here; for deeper troubleshooting, browse by topic in our FAQ hub.
Each burner address stays active for 3 hours—far more generous than typical 10-minute mail services. You can extend it back to 3 hours at any time, up to a 24-hour lifetime cap per address. When you hit the cap, the page tells you clearly; grab a fresh address and keep going.
Yes. Your address token is saved in both the page URL and browser local storage. Refresh, close and reopen, or open the link on another device—as long as the mailbox has not expired, you get the same inbox and every message already received.
No. OnceEmail is receive-only by design. That prevents addresses from being abused for outbound spam and is one reason the service can stay anonymous and free.
Messages usually land within seconds—wait a moment or tap manual refresh. Some platforms block disposable domains; try Get a new address. If the sender needs to reach you long-term, switch to a permanent forwarding alias instead.
Temporary inboxes do not keep attachments—the paperclip icon only means the original message had one. Messages over 100 MB are rejected outright. For attachments, use a forwarding alias: messages up to 50 MB keep attachments in the 30-day archive for download.
A burner inbox is for one-off use—open, receive, auto-delete, zero upkeep. A forwarding alias is a long-term identity: mail reaches your real inbox while senders only see the alias. When spam starts, pause that alias and the noise stops instantly.
Completely free. Temporary inboxes, up to 100 forwarding aliases, and 30-day mail archives cost nothing—no hidden tiers or usage caps.
Next time you sign up, grab an address here first
Save your real inbox for people who matter. Verification codes, trial confirmations, and promo mail belong in a disposable email.
Get a burner inbox now