What can you use sign-up email for,
and what should you know first?

We provide an inbox, not a guarantee from the sign-up platform

Tmprelay temporary email lets you receive messages such as verification codes, survey notifications, and event sign-up confirmations without creating an account. Temporary inboxes are receive-only: you can’t reply to organizers or use them to submit or cancel a registration, or complete identity checks.

Forwarding aliases are a separate service. First, use an accessible personal email address to receive a sign-in code. After signing in, create an alias and messages sent to it will be forwarded to your personal inbox. An alias isn’t a separate sending account. If an organizer expects a reply or follow-up, use an email address you can send messages from.

Tmprelay has no affiliation with or endorsement from third-party sign-up websites, survey platforms, or brands shown in demo emails. Demo messages on the home page illustrate how the interface works; they don’t mean you’ve registered for a third-party account or successfully signed up for an event.

Not sure which type of address to use? Start with How to choose an email for surveys and sign-ups, then submit the form.

Follow the on-page countdown; extensions aren’t automatic

A temporary inbox is valid for 3 hours by default. Each time you click “Extend by 3 hours,” the service adds 3 hours, up to a total retention period of 24 hours per inbox. You must request extensions yourself; check the on-page countdown after the request succeeds.

Refreshing the page or opening the full access link on another device won’t restart the timer or extend the inbox automatically. If a confirmation email may arrive late, extend the inbox while the address is still active. For tasks that may take more than 24 hours, use an email address you can access long term from the start.

To estimate how long to wait for a confirmation email, try the retention planner. For how to use an access link to reopen the same inbox on another device, see Reopen your inbox on another device. This only works while the original inbox hasn’t expired or been destroyed.

Keep one-time confirmations separate from long-term identity records

Whether a temporary email is right for you depends on whether you’ll need that address later to prove your identity. If losing access to messages could affect account access, payment benefits, or important notifications, don’t use a temporary address as your only contact method.

Forwarding aliases can help you manage notifications for different activities separately, but they don’t guarantee permanent delivery. For important account recovery, financial services, or ongoing identity verification, use a personal email account you control and can maintain long term.

Use the service for legitimate email; don’t use it to evade rules

When using Tmprelay, you must follow applicable laws and third-party platform rules. A temporary address or forwarding alias doesn’t give you extra eligibility to register or remove your responsibility for sign-up details, account information, or your actions.

We don’t guarantee that every website will accept a temporary address or alias. If a sign-up platform explicitly rejects these addresses, follow its requirements. Don’t switch addresses to evade a ban, registration limit, or identity check.

We may restrict use of an address, alias, or account to address abuse, security risks, or legal requirements. If you believe legitimate email access was incorrectly restricted, contact support with the time and details of what you were doing. Don’t send verification codes, access tokens, or full private access links.

Entering an email address doesn’t mean the sender has sent a message

Sender queues, manual review, blocking of temporary addresses, email filtering, and network issues can all delay or prevent delivery. The inbox checks for new messages every 7 seconds; this is only the check interval, not a promise that email will arrive within 7 seconds. Refreshing manually can’t prompt a third party to send a message.

If you don’t receive a confirmation email, first check the full address in the form, then see whether the sign-up platform says the message was sent. Decide whether to extend the inbox before it expires. Don’t switch addresses while waiting for a message to the old one; for more steps, see the pre-sign-up checklist.

After an alias is deactivated, future messages are discarded rather than forwarded. Reactivating it won’t retrieve messages sent while it was inactive. Deleting the forwarding archive won’t remove copies already delivered to the destination inbox; manage the two separately.

Save any information you still need before deleting it or letting it expire, but don’t treat a temporary inbox as the only backup for important records. We don’t guarantee uninterrupted service or delivery of every message. This doesn’t limit any user rights or service responsibilities that applicable law says cannot be excluded.

Treat your access link like a key to your inbox

A temporary inbox opens with an access token, and the full page link may contain that credential. Anyone with the link may be able to access the same messages. Only use it on trusted devices you control; don’t put it in public screenshots, group chats, shared documents, or third-party support tickets.

When using a forwarding alias, keep the destination inbox accessible and protect your sign-in codes and authenticator keys. Sign out on shared devices. If the destination inbox is full, disabled, or filtering forwarded messages, you may miss notifications; check its storage and spam folder first.

For details on how data, inbox contents, and records are handled, read our Privacy Policy. We’ll update this page and its date if the service or terms change. Before using the service again, check the time limits and restrictions that apply to your task.