Disposable Email Checker
Enter an email address to check its domain against a curated list of known disposable and temporary-mail providers.
Overview
Disposable (or "temp mail") services let anyone generate a throwaway inbox in seconds, which makes them a common way to bypass email verification during signup — inflating a mailing list with addresses that will never be read, or letting the same person claim a one-per-account promotion repeatedly. This tool checks the domain portion of an email address against a curated list of well-known disposable providers and reports a simple match or no-match result.
Examples
A known disposable domain
[email protected]
Disposable — mailinator.com is a known temporary-mail domain.
How It Works
- Enter an email address.
- Click Check to compare its domain against the disposable-domain list.
- Review the result — flagged as disposable, or not found in the list.
Use Cases
Signup form quality checks
Flag disposable addresses at signup time to reduce fake accounts and one-time promo abuse.
Cleaning an email list before a campaign
Screen out addresses unlikely to have a real, monitored inbox before sending a mail campaign.
Tips
- A 'not disposable' result isn't a guarantee — new throwaway domains appear constantly and this list can't be exhaustive.
- Combine this with the Email Validator and MX Lookup for a fuller picture: a domain can be non-disposable and still lack the mail servers needed to actually receive anything.
FAQ
It's a curated list of long-running, widely documented disposable-mail providers, not an exhaustive registry — new throwaway domains appear regularly, so a 'not disposable' result means the domain isn't on this list, not a certainty that it isn't disposable.
The email address is sent over HTTPS to check it against the list, but it's not stored — the check runs and the result is returned without logging the address anywhere.
Disposable services are identified by the domain they operate, not by any individual mailbox on that domain — every address at a disposable domain is equally throwaway.