A temporary inbox is a quick way to test sign-up, verification, and transactional email
without sending a stream of test messages to your own address. You generate a throwaway
address, run it through your registration or password-reset flow, read what actually arrives, and
move on — no real mailbox to clean up afterwards.
Where a throwaway inbox helps during development
These are practical, everyday testing tasks:
- Testing registration flows — confirm a new account can be created end to end.
- Testing email verification — check that a verification
code or activation link is delivered and works.
- QA and staging environments — use disposable addresses so test data never
touches a real user's inbox.
- Previewing transactional emails — see how receipts, welcome emails, or alerts
actually render on arrival.
- Testing password-reset delivery — verify the reset email is sent and the link
behaves as expected.
- Testing multiple user journeys — create several independent addresses to walk
through different sign-up paths.
- Keeping test messages out of your personal inbox — no filters or cleanup needed
afterwards.
Is there a TempMailo API?
TempMailo currently provides browser-based temporary inboxes. There is no public API.
You create and read inboxes through the website, the browser extensions, or the Android app — not
through a documented programmatic endpoint. If your testing needs full automation in CI, plan around
a tool that officially offers an API. For manual and exploratory QA, a browser-based inbox is often
enough.
Features that are useful while testing
- Instant generation — a fresh address is ready immediately, with no sign-up.
- Save Inbox and Restore Inbox — keep a
test inbox behind a password and restore it later to re-check a delivered message.
- Multiple domains — vary the address domain across test cases.
- Reply Relay — reply to the original sender when a flow expects a response;
it is reply-only and rate-limited (3 per inbox per day, 15-minute cooldown, up to 2,000
characters, up to 2 attachments).
Good testing habits and limits
- Do not use temporary inboxes for real user accounts or anything requiring durable access.
- Remember that some third-party platforms block disposable domains, so a temp address may be
rejected by an external service you are integrating with.
- Keep test volume reasonable and respect any rate limits — temporary inboxes are a shared,
free resource.
- Never send real personal data through a temporary inbox during testing.
FAQ
Does TempMailo have an API for automated tests?
No. TempMailo currently provides browser-based temporary inboxes through the website, extensions, and Android app. There is no public API.
Can I test email verification with a temporary inbox?
Yes. Generate an address, run your verification flow, and read the code or activation link when it arrives — without touching a personal mailbox.
Can I keep a test inbox to re-check a message later?
Yes. Save the inbox with a password and restore it later using its name, domain, and password to re-read a delivered message.
Can I create several test addresses at once?
You can generate multiple independent temporary addresses to test different user journeys. Please keep volume reasonable, since inboxes are a shared free resource.
Will external services accept the temporary address?
Not always. Some platforms block disposable email domains, so an external service you integrate with may reject the address. That is controlled by that service.
Can my app reply to a test email through TempMailo?
You can reply to the original sender manually through Reply Relay, which is reply-only and rate-limited. It is not an automated outbound-mail API.