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Disposable Email Checker

Detect temporary and throwaway email addresses to reduce fake signups. Check if an email is from a disposable provider like Mailinator, TempMail, or Guerrilla Mail.

Check for Disposable Email

Detect temporary and throwaway email addresses

4,941 domains in blocklist

Why check for disposable emails?

  • Reduce fake signups and spam accounts
  • Improve email deliverability metrics
  • Protect against fraud and abuse
  • Maintain a clean subscriber list
  • Save costs on invalid email sends

Our blocklist is sourced from the disposable-email-domains open source project and updated regularly.

About this tool

This free utility is designed to help email marketers and developers improve their deliverability and campaign performance. At Sequenzy, we believe in providing transparent, helpful tools for the community.

Frequently Asked Questions

A disposable email is a temporary address that expires after a short time or limited use. Common providers include Mailinator, 10MinuteMail, and Guerrilla Mail.

Disposable emails are often used for fake signups, spam, fraud, and abuse. Blocking them helps maintain list quality, reduce costs, and improve engagement metrics.

We check the email domain against a database of known disposable email providers and analyze domain patterns commonly used by temporary email services.

Rarely. Some privacy-conscious users use services like Apple's Hide My Email, which are different from disposable services. Our tool focuses on known throwaway providers.

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