Free tool

Disposable email detection

Verify if an email uses a temporary or throwaway provider before it enters your pipeline. 5,483+ domains in our blocklist.

Bulk check (optional, one email per line)

Why check for disposable emails?

Disposable inboxes (10-minute mail, guerrilla mail, etc.) inflate signups, hurt lead quality, and waste outreach credits. Filtering them at capture keeps CRM and cold email lists cleaner.

How it works

Validate format and extract domain, TLD, and parent domain
Match against 5,483+ disposable domains
Resolve MX records via Google Public DNS (dns)
Flag free providers, trusted whitelist domains, and role addresses
Trust confidence score (100 = best, 0 = disposable or invalid)
Export full JSON matching our API response shape

Pair with DNS checks

Disposable detection complements SPF/DKIM audits. Validate sending infrastructure on real business domains with our domain checker.