GDPR-Compliant Email Verification
Verify email addresses without the GDPR headache. All processing in Frankfurt, a DPA on every plan, and no transatlantic data transfers — built for European developers.
What Mailbeam checks
Every verification runs 7 checks in parallel and returns a structured result in under 100ms.
EU data residency
Every email address is processed on infrastructure in Frankfurt, Germany. Your users' data never leaves the EU, so there's no Chapter V transfer to assess.
DPA on every plan
A GDPR Article 28 Data Processing Agreement is included on all plans, including the free tier — not buried behind enterprise sales or 'available on request'.
No data retention
Addresses are verified in-flight and not stored after the response. Data minimisation (Article 5) by design, not by policy promise.
No US sub-processors for verification
Verification runs entirely within the EU, avoiding the Standard Contractual Clauses and transfer-impact assessments that US-based vendors require.
Supports the accuracy principle
GDPR Article 5(1)(d) requires personal data to be accurate and kept up to date. Verifying and cleaning email data helps you meet that obligation.
Audit-friendly
Clear documentation, a public DPA, and an EU processing guarantee make it straightforward to record Mailbeam in your processing activities (Article 30).
How it works
Data stays in the EU
Your request hits Mailbeam's EU endpoint and is processed in Frankfurt. No routing through US regions at any step.
Verification in-flight
Syntax, MX, SMTP, disposable, and catch-all checks run against the address, and the result is returned synchronously.
Nothing retained
Once the structured result is returned, the address isn't persisted. There's no profile, no log of personal data to subject-access or erase later.
Documented for compliance
Sign the included DPA and record Mailbeam as an EU processor. Your transfer assessment is a non-issue because there's no transfer.
Integrate in minutes
# All verification is processed in the EU (Frankfurt)
curl -X POST https://api.mailbeam.dev/v1/verify \
-H "Authorization: Bearer $MAILBEAM_KEY" \
-H "Content-Type: application/json" \
-d '{"email": "user@example.com"}'
# The address is verified in-flight and not retained.
# A signed DPA is available on every plan.When to use it
EU SaaS signups
Verify user-submitted emails at registration without sending personal data to a US processor — the default GDPR-safe choice for European products.
Regulated industries
Fintech, healthcare, and public-sector projects with strict data-residency requirements that rule out US-hosted verification tools.
Processing-records compliance
When your Article 30 records and DPAs need to show EU-only processing for every third party that touches personal data.
Replacing a US verifier
Migrating off ZeroBounce, Kickbox, or another US service to remove a transatlantic transfer from your data flows.
Frequently asked questions
Ready to integrate?
Free tier includes 1,000 verifications/month. No credit card required.