Ready without an account
Create a receive-only address without supplying a name, password or regular email address.
Once Email
When a temporary inbox makes sense
A temporary inbox is useful when a low-risk, short-lived task needs an email address and you prefer not to disclose your regular inbox. It is not a replacement for an address you control long term.
You control the expiry window
Choose 10 minutes, one hour or one day. A shorter lifetime reduces future exposure but also removes your recovery window.
Useful for short verification flows
Receive a short-lived sign-in or verification message without routing it to your long-term inbox.
Works in a modern browser
The inbox works on desktop and mobile browsers without installing an app. Delivery still depends on the sender and network.
How to use a temporary inbox safely
- 1
Choose an inbox lifetime
Select 10 minutes, one hour or one day according to how long you expect to need access.
- 2
Check the generated address
Once Email creates a receive-only address without asking for your name, password or regular email address.
- 3
Use the address
Copy the address into a low-risk sign-up or verification form. Never use it for banking, health, work or an account you may need to recover.
- 4
Keep the inbox open
Wait for the message in this browser, then inspect the sender and context before opening links or attachments.
- 5
Save only what you need
Copy a required code or record before expiry, but avoid moving sensitive information into a temporary workflow.
- 6
Finish and let it expire
Delete the inbox when finished or let it expire. After expiry, do not expect the address or messages to be recoverable.
What the service does—and does not do
The product has deliberately narrow boundaries: it receives email for a limited time and does not promise anonymity, sender trust or permanent access.
Free browser access
A basic temporary inbox can be created and used in the browser without payment. Paid API capabilities are separate and not advertised here.
A separate receiving address
Use a separate address when a low-risk service needs to send a short-lived message or verification code.
No account required
An address is generated without requesting your name, password or regular inbox. Signing in is optional for account features.
A visible expiry window
The selected lifetime is visible before use, and the inbox can also be deleted early when you are finished.
Less identity disclosure
Creating an inbox does not require an account, but service and network records may still exist. Temporary does not mean anonymous.
Reduced regular-inbox exposure
A separate address limits where your regular inbox is disclosed. It does not filter messages or guarantee protection from spam, phishing or malicious files.
Temporary email questions, answered
Once Email creates temporary addresses for receiving messages and verification codes without registration. It cannot send email. Review these answers before using a temporary address for a service.
A disposable mailbox is a temporary receiving address. It can reduce exposure of your regular inbox, but it does not guarantee anonymity or block every unwanted message.
A temporary inbox is designed for short-lived receiving and expires on a schedule. A regular email account is intended for ongoing communication, account recovery and long-term access.
Choose 10 minutes, one hour or one day before using the address. Save any necessary information before that window ends because expired inboxes are not a dependable recovery method.
No. Once-email.com only receives email and does not provide any sending function.
Use it only for low-risk, short-term sign-ups. Do not use it for banking, health, work, long-term access, or accounts that rely on email recovery.
It can keep your regular address out of a sign-up form, but messages in a temporary inbox may still contain personal data. Review the service before use.
Some services accept temporary addresses and others block them. Avoid using one where losing inbox access could lock you out of the account.
Do not rely on recovery after expiry or deletion. Save a necessary code or record before the lifetime ends, and use a regular address for anything that needs durable access.
No account registration is required. Temporary addresses and messages follow the retention periods described in our Privacy Policy; do not receive sensitive information here.
Attachments may be available when the sender and receiving service accept them. Treat every file as untrusted, verify its context and avoid opening unexpected downloads.
Received messages do not consume the address-switch allowance. Delivery and retention are still subject to abuse controls, the selected inbox lifetime and operational limits.
Message and attachment limits are enforced by the receiving service and may change. Check the size shown before downloading an attachment, and use the local attachment budget tool when estimating outbound provider limits.
The sender may be delayed, the address may have expired, or the other service may reject temporary-email domains. Confirm the address and lifetime first; do not keep switching addresses to bypass another service's policy.
Yes. Once Email supports modern mobile browsers, with the same receive-only and expiry limitations as the desktop experience.