Disposable Email Detector
Detect disposable and throwaway email addresses from known providers in a single address or a whole list. Free, instant, runs in your browser.
Detect disposable emails
Paste one or more addresses. We flag those from known disposable / throwaway providers.
Features
Common use cases
- 1Blocking throwaway sign-ups
- 2Cleaning a list before import
- 3Reducing bounces and fake accounts
- 4Enforcing real-email sign-up policies
- 5Screening lead-gen submissions
- 6Auditing an existing list for junk
Related tools
About disposable emails
Disposable (or throwaway) email addresses come from services that hand out an inbox for a few minutes to bypass sign-ups. They are abandoned almost immediately, so mail sent to them bounces or goes unread, inflating your bounce rate and skewing metrics.
This detector matches each address against a curated list of known disposable domains and separates them from your real contacts. Because new disposable domains appear constantly, treat a clean result as "none of the known ones" rather than an absolute guarantee, and re-screen important lists periodically.
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Got Questions? We Have Answers.
What is a disposable email?
A throwaway address from a service that hands out a short-lived inbox to bypass sign-ups. Mail to it bounces or goes unread, so it hurts deliverability and metrics.
How does the detector work?
It matches each address's domain against a curated list of known disposable providers and separates them from your real contacts.
Can it catch every disposable domain?
No — new ones appear constantly. Treat a clean result as "none of the known ones" and re-screen important lists periodically.
Does it check a list or one address?
Both. Paste a single address or a whole list; results are split into disposable and clean groups you can copy.