StopBouncingDisposable Email Checker.
Stop Throwaway Addresses at the Door.
Detect throwaway addresses from Mailinator, Guerrilla Mail, TempMail, and tens of thousands of other temporary email services. Block them at signup or remove them from existing lists.
Where Disposable Emails Cause Problems
SaaS free trials
Users creating multiple free trial accounts with throwaway addresses to bypass credit limits or feature gates.
Newsletter signups
Subscribers using temporary addresses that expire before your first send, causing immediate hard bounces.
Lead generation forms
Fake leads entering disposable emails to download gated content without providing a real contact address.
E-commerce checkout
Customers using throwaway addresses for guest checkout, making re-engagement campaigns impossible.
Known Temporary Email Services (Sample)
StopBouncing tracks tens of thousands of disposable email providers and updates the database continuously.
Disposable Email FAQ
What is a disposable email address?
A disposable email address (also called a throwaway, temporary, or burner email) is a short-lived address created for a single purpose — usually to receive a verification email without exposing a real inbox. These addresses typically expire within minutes to hours and are provided by services like Mailinator, Guerrilla Mail, and TempMail.
Why should I block disposable emails?
Disposable emails lower list quality, inflate your subscriber count without real engagement, cause bounces when addresses expire, and can be a signal of fraudulent or abusive account creation. Most legitimate users don't have a reason to use a throwaway address.
How many disposable email domains does StopBouncing know about?
Our database tracks tens of thousands of known disposable email domains and is updated continuously as new services emerge. We also use behavioral heuristics to detect domains that behave like disposable services even if not yet on our list.
Can I check disposable status via API?
Yes. The StopBouncing API returns a disposable flag alongside every verification result. You can use this to block sign-ups in real-time from your registration form, CRM, or email marketing platform.
What should I do with disposable emails already in my list?
For existing lists, use StopBouncing's bulk CSV upload to check and flag all disposable addresses. You can then filter them out before your next campaign send. For ongoing prevention, integrate the API into your signup flow to block disposable addresses at entry.
Stop Disposable Emails Today
Check individual addresses or upload your whole list. 100 free credits on signup.