Detect disposable and throwaway emails
Why this signal matters
Disposable email domains exist to create one-time inboxes for signups, trials, and abuse. Blocking them at registration protects trial conversion metrics, reduces support noise, and limits credential-stuffing targets. A checker that combines curated lists with live DNS catches domains that have not yet appeared on public blocklists.
Related tools
Need volume, webhooks, or team access?
The same detection stack powers the EmailGuard API. Start free, then scale with scoped API keys and predictable rate limits.