Disposable Email Checker - TempMailChecker

Instantly check if an email address is disposable or temporary. Free, fast, no API key required.

Stop fake signups before they reach your database. TempMailChecker instantly identifies whether an email address is disposable / temporary using real-time API detection. The extension checks any email and tells you immediately if it comes from Mailinator, GuerrillaMail, Temp-Mail, 10MinuteMail, or 200,000+ other disposable domains. ⚡ Ultra-Fast Detection • Sub-millisecond processing • ~50–80ms worldwide latency • 3 regional endpoints (US • EU • Asia) 🧠 Built for developers • Test emails before integrating your signup flow • One API request → one boolean → temp or not • Works with any backend (Node, Python, PHP, Go, Ruby, etc.) 💡 Who uses this? • SaaS founders • Developers • Product teams • Growth & fraud prevention teams 🔒 Why block disposable emails? • Fake signups inflate MAU and burn server resources • Trial abuse & coupon farming damage revenue • Zero conversions — disposable emails rarely become paying users • Email deliverability suffers due to bounces • Support tickets pile up when inboxes expire 🚀 Want to block disposable emails automatically? Integrate the TempMailChecker API into your signup flow. Free tier available — no credit card required. → https://tempmailchecker.com