What Is a Disposable Email?
A clear guide to addresses and incoming mail.

An inbox address for short-term tasks, usually without the need to create a full email account. HourInbox addresses last one hour by default and can be extended before they expire.

Useful for a one-time signup or verification, but not as a long-term recovery address for important accounts. Expiry times and features vary by service.

Emphasizes an address you can stop relying on once you’re done; it doesn’t necessarily mean you can receive only one message. Often used interchangeably with temporary email, but the name alone doesn’t tell you how long messages are kept.

To check whether it will work for your task, look at the actual countdown—not whether the service calls itself “10-minute” or “disposable.”

An address different from your main email that forwards incoming messages to your real inbox. You can create a separate alias for each source, making it easier to identify and block unwanted contacts.

An alias is not a separate mailbox with its own password, nor does it mean messages never pass through an intermediary service. On HourInbox, you must verify your destination email to manage long-term aliases.

The prefix is the part before @; the domain is the part after it. Changing the prefix changes the receiving address, but not how others treat the domain as a whole.

Custom prefixes are still subject to format rules, availability, and reserved words. A readable name is not necessarily private, and it cannot replace access credentials.

How long the service will keep receiving mail for a temporary address. The countdown shows the server-side expiry; closing the page won’t pause it.

After extending an address, check that its expiry time has actually updated. To work out how much time your task needs, use the lifetime planner.

Set by the website sending the code, independently of how long your temporary email address lasts. Having 30 minutes left on your address doesn’t mean a code sent 10 minutes ago is still valid.

To get a new code, return to the original website and request one again. Check that you’re using the latest email for the right action, and never forward verification codes to anyone.

Data your browser uses to prove you’re allowed to access an inbox or account session. Your address is where others send you mail; the token is part of what grants you permission to read it.

Don’t share tokens with support or send screenshots of your browser storage. Clearing browser storage could lock you out of your temporary inbox.

Changing your address creates a new way to receive mail; it won’t automatically update the address linked to an account on another website. Deleting an address ends its use—it’s more than just deleting a message.

Before making a change, check that you’re not waiting for a verification on the old address. If you still need the same message, consider extending the address instead.

Mail first reaches the alias service, then gets sent to the real email address you verified. Delivery also depends on the destination inbox’s capacity, filters, and the mail network.

Forwarding doesn’t automatically let you reply from an alias, and it doesn’t promise a two-way email client. To keep receiving mail, protect both your destination inbox and your alias session.

A history of messages kept so you can review incoming mail and troubleshoot delivery. The HourInbox dashboard keeps forwarding records for the last 30 days—not as a permanent backup.

Deleting a record on the site won’t remove a copy already delivered to your destination inbox. For long-term storage, archive messages in your own email account.

These statuses describe the delivery result observed by the service; they don’t mean you’ve read the message in your destination inbox. Pending may mean delivery is still in progress, while failed requires checking the details.

Even if a message shows as forwarded, check your destination inbox’s spam folder and filters. A status can’t guarantee where a third-party service will ultimately display it.

HTML can display formatting, images, and links; plain text contains text only. An attachment is a separate file, and its presence doesn’t mean the message body has been fully saved.

For security, the page may restrict potentially dangerous content, and remote images may not appear. If you need the complete message, check the original forwarded to your destination inbox.

A long-term address used to prove account ownership and receive recovery links if you lose your password or can’t sign in. It should be stable, secure, and an inbox you can manage over time.

A temporary email address that expires isn’t suitable for account recovery. If you’ve already linked one, update it on the original website and complete verification at both addresses while the old one still works.

“Anonymous” often means not revealing your main email address to a website, but it doesn’t mean your identity can’t be linked to your activity. Network data, payments, and account activity can still identify the same user.

A temporary address can reduce exposure of your main email, but it isn’t for sensitive communications or evading legal responsibility. For details on data handling, see the Privacy Policy.

Confirm sign-ins with a time-based code from an authenticator app, in addition to email verification. Apps such as Google Authenticator, Microsoft Authenticator, and 1Password can scan a setup QR code and generate a 6-digit code.

Codes change regularly, but the setup key must stay secret. Make sure you can keep your authenticator safe before linking it, and don’t share its QR code as an ordinary image.

A sample used to show how messages, verification codes, and receipts appear. It doesn’t represent real incoming mail. The brands shown in HourInbox demos are not affiliated with or endorsed by HourInbox.

For real messages, check the actual sender, subject, and time. Demo codes can’t be used to sign in to real accounts.