Temp Mail FAQ: How Temporary Email Works

Temp Mail FAQ: How Temporary Email Works

Temp mail is a temporary email address that receives messages for a short time so you never have to hand a website your personal address. TempZap generates a disposable inbox in your browser with no registration, delivers verification emails and OTP codes in seconds, and deletes every message after 48 hours. Below are direct answers to the questions people ask most before, during and after using a disposable inbox.

Last reviewed: 4 August 2026

Temp mail basics

What is temp mail?

Temp mail, also called temporary email, disposable email or burner email, is a short-lived email address used to receive messages without giving a website your real address. The inbox exists for a limited time, needs no password, and is thrown away once you have the message you needed. It is the email equivalent of a paper cup.

What is TempZap?

TempZap is a free, browser-based temporary email service. It generates a disposable address the moment the page loads, receives verification emails, activation links and OTP codes on that address, and shows them in a live inbox. There is nothing to install and no account required to use the core service.

How does TempZap work?

TempZap owns several mail domains and accepts incoming mail for any address on them. When you generate an address, the site starts listening for mail sent to it and streams new messages into the inbox on screen. Nothing is forwarded to a real mailbox, and messages are removed on a fixed schedule.

Is TempZap free?

Yes. Generating addresses and reading incoming mail costs nothing and needs no payment details. An optional free account adds extra sending domains, saved addresses between sessions and pinned messages, but the core temp mail service works without signing up.

Do I need an account?

No. You can generate an address and read mail immediately. An account is only needed for the extras: additional domains, keeping a favourite address across sessions, and pinning messages during the retention window.

Using your disposable inbox

Can I receive OTP codes and verification emails?

Yes. Most one-time passcodes, activation links and confirmation emails arrive within a few seconds. Some services maintain blocklists of disposable domains and will reject the address at signup. If that happens, generate a new address on a different TempZap domain and try again.

Can I send or reply to emails?

No. TempZap is receive-only by design, which prevents the service from being used to send spam or impersonate anyone. If a website expects a reply from your address, use a standard email provider instead.

How long does a temporary email last?

Messages are deleted automatically 48 hours after they arrive and cannot be recovered afterwards. The address itself stays usable while your session is active, or permanently if you save it to a free account. Treat the 48-hour window as a hard deadline: download or screenshot anything you need to keep.

How many addresses can I create?

Free users can create up to 24 addresses per day. The cap exists to stop automated abuse and keep delivery fast for everyone. Some address names are blocked to prevent impersonation of brands or staff.

Are attachments supported?

Small attachments can be previewed and downloaded before the message expires. Only download files from senders you were expecting. Do not open executables, macro-enabled documents or archives from unknown senders, and scan anything you save with your own antivirus software.

Does TempZap work on mobile?

Yes. TempZap runs in any modern mobile or desktop browser with no app installation. The inbox layout adapts to small screens and the copy button works on touch devices.

Can I recover an expired address or deleted message?

No. Once a message passes the 48-hour window it is permanently gone, and TempZap cannot restore it. This is intentional: nothing is kept, so nothing can be handed over or leaked later. Never use a disposable inbox as the only route back into an account.

Safety and privacy

Is temporary email safe to use?

It is safe for the job it was built for: low-risk signups, newsletters, free trials, download gates, public Wi-Fi portals and software testing. It is unsafe for anything you need to keep access to, because the inbox expires and you lose password resets, receipts and recovery codes with it.

When should I use a temporary email address?

  • Forum, wiki and community registrations you will use once
  • Free trials you do not intend to keep
  • Ebook, whitepaper and file download gates
  • Hotel, airport and café Wi-Fi sign-in forms
  • QA and development test accounts
  • One-off OTP and activation codes

When should I never use a temporary email address?

  • Banking, payment platforms and crypto exchanges
  • Healthcare, insurance and government portals
  • Primary social media, work and school accounts
  • Online shopping where you may need receipts, refunds or disputes
  • Recovery address for a Google, Apple or Microsoft account
  • Job applications and any professional correspondence

Can anyone else read my temporary emails?

Treat a disposable inbox as non-confidential. Addresses are randomly generated, which makes guessing one unlikely, but the service is not built to protect secrets. Never receive passwords, payment details, identity documents or private conversations on a temp mail address.

Does temporary email expose my IP address?

The person emailing you does not see your IP address, because the mail is delivered to TempZap's servers rather than to your device. Your connection to this website is visible to TempZap and to your network provider in the normal way any website visit is. A temp mail address hides your contact identity, not your location. Use a VPN if location privacy is what you need.

What data does TempZap store?

See the TempZap privacy policy for exactly what is recorded, including message content, retention periods, connection logs and abuse-prevention data. Keep that page and this answer in sync whenever the implementation changes.

Using a disposable address is legal in most countries and is a normal privacy practice. Individual websites may ban them in their terms of service, so a rejected signup is a policy matter rather than a legal one. Do not use TempZap for fraud, harassment, evading bans or circumventing paid limits.

Troubleshooting

My email has not arrived. What should I do?

  1. Confirm the address was pasted exactly, with no trailing space
  2. Wait 30 to 60 seconds and refresh the inbox
  3. Check whether the sender rejects disposable domains
  4. Generate a new address on a different TempZap domain and retry
  5. If the sender is a high-volume service, allow a few minutes for their queue

A website rejected my TempZap address

Some services block known disposable domains at signup. Switching to another TempZap domain usually resolves it. If the site blocks all of them, it has decided it wants a permanent address, and you should use a real one or an email alias instead.

What happens if I refresh or close my browser?

Without an account, the address is tied to your current session and may not come back after you close the tab. Copy or save any address you plan to return to, and read important messages before you leave. Signed-in users can keep a saved address across sessions.

Which languages does TempZap support?

TempZap is available in several languages, each on its own URL. Only fully translated versions are listed here, and each one links back to this English page.

Temp mail compared to the alternatives

TempZap temp mailEmail aliasRegular inbox
Setup timeInstant, no accountMinutes, needs an accountMinutes, needs personal data
Message retention48 hoursPermanentPermanent
Can send mailNoYesYes
Account recoveryNot possibleYesYes
Best forThrowaway signups and OTP codesLong-term signups you want to filterAnything you own

Still stuck?

Read is temporary email safe? for the full risk breakdown, how temporary email works for the technical walkthrough, or contact support if something is broken. Ready to start? Generate a free temp mail address.