InboxTrue

Plans and prices

Every plan, in full

On the record

API integration

The API uses plain HTTP and requires no SDK, with examples for curl, Node.js, Python, and Go.inboxtrue.com · read 5 Oct 2026

API limits

Single-email validation accepts a timeout from 1 to 90 seconds, with a default of 60 seconds.inboxtrue.com · read 5 Oct 2026

Bulk validation

The bulk endpoint accepts up to 200,000 email addresses per order and supports delivery webhooks.inboxtrue.com · read 5 Oct 2026

Compliance

For EU, UK, or Swiss personal data transfers, the policy says InboxTrue relies on safeguards such as Standard Contractual Clauses or other lawful transfer mechanisms.inboxtrue.com · read 5 Oct 2026

Data handling

Submitted email addresses and results may be cached, stored in validation history, and used to improve service accuracy; the policy says they are not sold.inboxtrue.com · read 5 Oct 2026

Integrations

The maker describes integration through a REST API but does not name third-party app integrations on the opened pages.inboxtrue.com · read 5 Oct 2026

Intended users

The privacy policy says the service is intended for businesses and developers and is not directed to children.inboxtrue.com · read 5 Oct 2026

Product

InboxTrue is an email validation API for checking whether addresses are real before sending email.inboxtrue.com · read 5 Oct 2026

Security

The privacy policy says data is encrypted in transit and at rest, access is role-based and audit logged, and API keys are hashed.inboxtrue.com · read 5 Oct 2026

SMTP behavior

The SMTP check uses a real handshake and says it does not send email.inboxtrue.com · read 5 Oct 2026

Support

Enterprise customers can request dedicated support, and the API documentation says customers can contact InboxTrue about higher rate limits.inboxtrue.com · read 5 Oct 2026

Validation checks

The service checks syntax, DNS/MX, SMTP mailbox existence, disposable addresses, and catch-all domains.inboxtrue.com · read 5 Oct 2026

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