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.
Product
Email validation features in one API
EmailGuard bundles syntax, typo suggestions, normalization, and classification checks—disposables, roles, relays, public domains—behind one endpoint your app calls at signup or CRM sync time.
Domain and TLD suggestions
Recommend corrected addresses for common provider-domain and suffix typos, such as `bogpond.ccom` to `bigpond.com`, without exposing the underlying rule catalog.
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. For a checklist of what to validate before you store an address, read the email validation API guide.
Need higher volume, custom retention, or a security review? We work with teams rolling out validation across signup, CRM, and checkout flows.
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