Email Validation API

When to use this API

This service checks email syntax, domain-level conditions and additional diagnostics to help classify address quality. It supports acquisition, transactional and operational messaging workflows where bounce prevention matters.

• You need to reduce bounce rates and improve sender reputation.
• You want to validate email quality at signup or import time.
• You need standardized validation outcomes across systems.

Typical use cases

• Signup form quality checks.
• CRM list hygiene before campaign execution.
• Lead import validation in sales operations.

Deliverability confidence

Mailbox existence cannot always be confirmed unambiguously because some domains hide recipients, use catch-all routing, greylist probes or block SMTP checks.

• Read status, exists and confidence together instead of treating any single field as absolute proof.
• Use disposable, MX, role-account, SMTP and catch-all diagnostics as supporting signals.
• Treat unknown or risky outcomes as policy decisions for your product flow rather than transport errors.

APIRAPTOR token model

Tokens are APIRAPTOR's communication unit. One token equals 100 subtokens, and Email Validation is charged per email_validation service billing event only when a real validation check path executes.

• Trial availability, token amount and duration come from Billing configuration.
• Users have access to all services from day one; services are not premium-gated per plan.
• Locally rejected invalid input is not a billable real check.
• This is service billing event metering, not ordinary API-call billing.