Product
Validation depth without vendor sprawl
EmailGuard bundles syntax, normalization, and classification checks—disposables, roles, relays, public domains—behind one endpoint your app calls at signup or CRM sync time.
- Syntax validation
- RFC 5322–aware parsing, RFC 5321 length limits, IDNA domains, and IANA plus Public Suffix List checks—so malformed addresses fail before they hit your database.
- Normalization and subaddressing
- Collapse provider-specific aliases and plus-tags into one canonical mailbox. The subaddressing flag tells you when an alias was stripped for deduplication.
- Disposable detection
- Curated domain intelligence, infrastructure fingerprinting, and live DNS when needed—catch throwaway inboxes and day-zero burner domains without maintaining blocklists yourself.
- Privacy relay detection
- Flag Firefox Relay, SimpleLogin, Proton Pass, and similar forwarding addresses that mask the user's real inbox.
- Role and public domains
- Separate shared inboxes from personal mail and flag consumer providers when B2B fit or lead scoring depends on a corporate domain.
- Developer-ready API
- One documented GET endpoint returns every signal. Typed SDKs, scoped API keys, and predictable rate limits.
- Team workflows
- Shared workspaces, role-based access, and audit logs so engineering and ops stay aligned on usage.
- Usage visibility
- Track API volume against plan quotas, review audit events, and wire notifications when thresholds are hit.
Detection signal guides
Each field in the detect API response has a short knowledge base article—RFC context, example requests, and policy patterns.
Need higher volume, custom retention, or a security review? We work with teams rolling out validation across signup, CRM, and checkout flows.
Contact sales