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Disposable email database

Free disposable
email checker.

Check a domain against 5,442 entries in our bundled snapshot of the open disposable-email-domains list. No account or API key required.

Try:

No signup needed. Only the domain is sent for lookup against our bundled blocklist. This does not check mailbox ownership, delivery, or whether a person is abusive.

Protect your signup flow — copy the integration prompt →
01 — Well-known providers

The disposable email providers everyone meets first.

✕  mailinator.comListed in our blocklist✕  guerrillamail.comListed in our blocklist✕  10minutemail.comListed in our blocklist✕  yopmail.comListed in our blocklist✕  tempr.emailListed in our blocklist✕  mail.tmListed in our blocklist✕  dropmail.meListed in our blocklist✕  trashmail.comListed in our blocklist✕  getnada.comListed in our blocklist✕  fakeinbox.comListed in our blocklist✕  sharklasers.comListed in our blocklist✕  maildrop.ccListed in our blocklist
02 — Browse by letter

All 5,442 domains, alphabetised.

Pick a starting character to view every disposable domain that begins with it. Each domain has its own page with a verdict, a code snippet, and related providers.

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03 — Block them in one call

Don’t maintain a 5,000-line file. Call the API.

TrueUser ships this list (and a dozen other signals) behind one REST endpoint. Drop it into your signup handler and reject disposable, role, and batch-cluster addresses before they cost you onboarding spend.

New to this? Read the guide: how to block disposable email signups →

# POST /api/v1/verify
curl -X POST https://trueuser.dev/api/v1/verify \
  -H "Authorization: Bearer $KEY" \
  -d '{"email":"[email protected]"}'
# => { "disposable": true, "verdict": "block" }

Disposable email checker FAQ

What is a disposable email address?

A disposable email (also called temp mail, throwaway, or temporary email) is an address from a service that generates short-lived, often public inboxes on demand. People use them for privacy or one-off access; they can also be used to claim repeated free trials.

What is temp mail?

Temp mail refers to temporary email services used for short-term access. Inbox lifetime, privacy, and retention vary by provider. Using one does not by itself prove that a signup is abusive.

How do I check if an email is disposable?

Enter the domain in the free disposable email checker above, or call the TrueUser verify API. The free checker looks for the domain in our bundled blocklist snapshot. The API adds risk signals and applies your account rules. Neither proves mailbox ownership.

How do I block disposable email signups?

POST the email to the TrueUser /api/v1/verify endpoint in your signup handler. If the response flags the address as disposable, reject or hold it before granting benefits, while offering legitimate users a review path.