Free Temp Email Checker

This tool provides a free, no-limits service to detect disposable and temporary email addresses. It offers 99.9% accuracy by checking against a catalogue of approximately 210,000 throwaway domains, validating RFC syntax, flagging role addresses, and performing live DNS MX lookups without probing mailboxes. No account or API key is required for usage, with rate limits applied per IP. The disposable domain list is refreshed every 24 hours to ensure up-to-date detection.

• Key Features:
• Disposable and temporary email detection
• Extensive catalogue of over 210,000 throwaway domains
• RFC syntax validation
• Role prefix detection
• Live DNS MX lookup without SMTP probing
• Public unauthenticated API

The service is ideal for developers and businesses looking to protect signups, prevent fraud, and maintain clean marketing lists by automatically flagging risky contacts before they lead to wasted time or resources. It can be integrated into signup forms, authentication middleware, account creation APIs, and more.

Reloop is open-source email infrastructure, allowing for self-hosting of the entire stack or integration via a hosted API.