Free tool

Detect privacy relay and forwarding providers

Identify forwarding providers such as Apple Hide My Email and common Gmail alias patterns.

Why this signal matters

Privacy relays help users avoid sharing their real email. For product teams, that means recovery flows and support verification need different handling. Relay detection separates masked identities from direct personal inboxes so you can route and score leads accurately.

Related tools

Disposable Email Checker
See whether a domain is on our disposable list or resolves as a throwaway provider via live DNS.
Public Domain Checker
Identify consumer mail providers when B2B fit or lead scoring depends on corporate domains.

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.

Start validating free View API docs