Is it a throwaway address?
Paste an email or a domain. We check it against known disposable and temp-mail providers and answer straight away.
We don't save the email address or domain you check.
What a disposable address is
Disposable, or throwaway, providers hand out short-lived inboxes that people use to get past a signup form without giving a real address. The inbox is often public or shared, and typically stops working within hours.
Use this to keep throwaway signups out of your real list, to spot fraud at registration, and to understand why a recent signup never engaged. We show the domain matched, not just a verdict.
91-93% real-world accuracy on full email verification. A clean disposable check means the address is not from a throwaway service, not that the mailbox is real.
Common questions
Is disposable the same as undeliverable?
No. A disposable address may accept mail right now, but it is unlikely to be read and may vanish soon. Treat it as high-risk rather than strictly undeliverable.
Should I block disposable signups?
That depends on your tolerance. Many teams block them at the point of sign-up to reduce fake accounts. Others tag them for review. Knowing which is which is the first step.
Does a clean result mean the address is real?
No. This check only tells you the domain is not a known throwaway provider. A clean result means the address is not disposable, not that the mailbox exists. Use a full verification to confirm the inbox is live.
How is the list kept current?
We maintain and update a list of known disposable and temporary email providers. The list is vendored in the product and refreshed as new services appear.