Check for freemail and public email domains
Why this signal matters
B2B products often weight corporate domains higher in lead scoring. A public-domain flag at signup lets RevOps segment freemail signups, tune onboarding, and prioritize outbound without rejecting valid users.
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.