Free Email Verification API — Source Code

Your Mautic or WordPress list filling up with fake and disposable email addresses? This is the exact code I built to stop it — free to download, no strings attached.

Every email gets checked four ways before you trust it:

• Syntax — is it even shaped like an email?
• Disposable domain — is it mailinator, guerrillamail, or one of 786 other throwaway domains?
• Role-based — is it info@, admin@, noreply@? (a real inbox, just not a real signup)
• MX record — does the domain actually have a mail server?

Drop it into your own project and run it in about 10 minutes:

pip install -r requirements.txt
uvicorn app.main:app --reload

curl "http://localhost:8000/email/verify?email=test@mailinator.com"

{
  "is_valid": false,
  "score": 25,
  "reason": "Disposable email domain not accepted"
}

It’s structured with a clean app/routers/ + app/data/ layout, so you can drop in more endpoints later without restructuring anything.

Want the full story of how and why this was built? Read the complete breakdown on ceeveeglobal.com →

No attribution required — build on it, sell it, ship it as part of something bigger.