Disposable email blocklist

Introduction

A disposable email blocklist helps teams block temporary mail domains at registration, trial signup, or lead capture. Services like Mailinator, Guerrilla Mail, and YOPmail let anyone create an inbox in seconds — useful for QA, but risky when you need recoverable accounts or reliable marketing consent.

This page publishes the same domain list bundled with the Disposable Email Checker. Search the grid, copy filtered results, or download a .txt file for your own filters — all in the browser, no upload.

What is on this page?

Feature	Description
Search	Filter domains by keyword; partial matches included.
Browse	Multi-column grid of all listed domains.
Copy	Clipboard export of the current view (full or filtered).
Download	Plain-text file, one domain per line.

The list covers well-known throwaway providers and many long-tail temp-mail hosts. Domains not listed may still be disposable — new services launch daily.

Common use cases

• Building signup deny-lists for SaaS, newsletters, or community forums.
• Auditing which temp-mail brands your product should block.
• Exporting a starter blocklist for server-side validation or CRM import rules.
• Pairing with Email Validator for syntax checks and optional MX lookup before accepting an address.

Best practices

• Block disposable domains at registration, not only at send time, to reduce fake account load early.
• Treat not on list as “unknown,” not “verified human” — add OTP or double opt-in for important accounts.
• Refresh data/disposable_email_blocklist when you discover new providers, then run npm run disposable-blocklist:sync.
• Combine blocklist checks with rate limits, CAPTCHA, and device signals for high-value flows.
• For deliverability and DNS auth, use SPF Checker and DMARC Checker separately from disposable detection.

Related tools

• Disposable Email Checker — check single or bulk addresses against this blocklist.
• Email Validator — format validation and optional MX lookup.
• MX Lookup — inspect mail routing for a domain.