MESSAGE DETAILS
(no subject)
External content and attachments are not loaded, helping keep the inbox safer.
LOCKED INBOX · EXCLUSIVE BROWSER CLAIM
Your inbox.
Your claim.
Claim an available email username for one active browser session. Keep this page open to renew the claim; it releases after inactivity and has a hard three-hour maximum.
No account needed
Exclusive temporary claim
Up to 3 hours
EXCLUSIVE CLAIM FOR THIS BROWSER
Your locked inbox, ready.
This page claims an available username for the current browser session. Usernames can contain letters, digits, or both. If another locked session is already using that address, choose another one.
Connecting securely…
Creating your inbox…
Keep sensitive accounts out of temporary email. A browser claim is temporary access control, not end-to-end encryption or a recoverable account. Do not use this service for banking, health records, password recovery, or accounts you need to keep.
HOW THE LOCK WORKS
A temporary claim, not a permanent account.
Locked Inbox gives one active browser exclusive use of a username for a short period. The browser sends a heartbeat while the page is open; missing heartbeats release the address, and the claim cannot last longer than three hours.
Claim an available username
Choose any available 1–20 character username made of ASCII letters and digits, except exact names used by the homepage generator; variants such as james47 are allowed; or generate a cryptographically random username. An active locked claim cannot be taken over.
Keep this page open
A short renewable lease stays active while this browser continues to check in. Closing the page attempts to release the claim immediately.
Three-hour hard limit
After three hours the claim ends even if the page stays open. Another browser may then claim the same username, so do not use this for important accounts.
Privacy note: this lock prevents another browser session from using the same address through this feature while the claim is active. It is not a permanent identity, encryption system, or guarantee of anonymity. Only messages received after the locked claim begins are shown in this view; earlier standard-inbox messages are kept separate.
DESIGNED FOR SHORT TASKS
Exclusive while the lease is active.
Use this mode for brief, low-risk workflows that benefit from limiting who can claim the same username at one time.
Temporary exclusive access
A username stays unavailable to another Locked Inbox session while its claim is active.
Automatic release
The lease is refreshed while active, expires after missed heartbeats, and never exceeds the three-hour maximum.
Safer message reading
External content and attachments are not loaded, reducing common email tracking and script risks.
HOW IT WORKS
Three steps.
No new account.
Use a temporary email address for short-lived, low-stakes interactions. Choose standard mode for convenience or Locked Inbox when you need a temporary exclusive claim.
Read the full guide- 01
Create an address
A short name-and-number address is generated, or choose any username made of letters and/or digits.
- 02
Wait for the email
Use the address with a service that permits temporary email. New messages appear in this browser.
- 03
Read your message
Open incoming email in the built-in message reader. Inbox availability follows the service’s current settings.
LEARN BEFORE YOU USE
Better email habits start with context.
Our guides explain privacy trade-offs, verification delays, email aliases, and safe testing practices.
GOOD TO KNOW
Common questions, clear answers.
Is the standard inbox private?
No. Standard inboxes are shared by email address: anyone who uses the same address can see messages there. Choose Locked Inbox for an exclusive claim tied to one browser session for up to three hours.
What does “assigned to another browser session” mean?
That message applies to Locked Inbox only. An active claim cannot be taken over by another browser. The claim renews while the page is active, ends after inactivity, and has a strict three-hour maximum.
How long are messages kept?
Messages and inactive inboxes expire according to the service’s current settings. Expired messages are hidden by the API before scheduled database cleanup runs.
Can I use this for Gmail or another service?
Some services accept temporary addresses and others block them. Acceptance can change at any time. Follow each service's terms and use a long-term mailbox when you need account recovery.
Can I open links or download attachments?
For safety, external content and attachments are not loaded into the reader.