Real-time email verification with SMTP, MX, SPF, and DMARC checks. Available as a REST API, built into every integration, and designed for teams that need HIPAA-grade data hygiene.
0/5 free validations used
Every email goes through a multi-layer verification pipeline before it reaches your CRM, outreach tool, or data warehouse.
RFC-compliant format checks catch typos and malformed addresses before they ever hit a server.
DNS resolution confirms the domain exists and is configured to accept mail.
We connect to the mail server and confirm the specific mailbox exists — no email sent.
Enumerate all mail exchange servers and identify the primary handler.
Check anti-spoofing policies. Domains without SPF/DMARC are flagged as higher risk.
Detect disposable email providers and catch-all domains that accept everything.
Cross-reference against 26M+ contacts for enriched data — name, company, title, and more.
Integrate email verification directly into your application, pipeline, or workflow. One endpoint. One API key. Full verification results in under two seconds.
Integration Import
HubSpot — 12,847 contacts
Connect your CRM, email platform, or spreadsheet. When you import contacts, LeadLeap automatically verifies every row — no manual list uploads, no extra steps, no code required.
Healthcare, finance, insurance, and legal teams use email verification to meet compliance requirements and protect sensitive communications.
Verify patient and provider email addresses before sending PHI. Prevent misdirected communications that trigger breach notifications.
Maintain data accuracy obligations under SOC 2 controls and GDPR Article 5. Automated verification keeps your records clean.
Banks and fintechs use email verification to reduce fraud risk, validate KYC submissions, and meet BSA/AML communication standards.
Catch invalid, disposable, and catch-all addresses before they pollute your database. Maintain >95% deliverability rates.
We do not store the email addresses you validate. Results are cached for 24 hours to prevent duplicate API calls, then purged.
Issue scoped API keys per team or integration. Audit logs track every verification request for compliance reporting.
Use the tool that fits your workflow — manual lookups, built-in integration verification, or our REST API.
Paste an email above and get instant results. No account required for your first 5 checks.
Connect a CRM or import a CSV. Every contact is verified automatically as it enters LeadLeap.
POST to /v1/validate with your API key. Get full verification results in your own app or pipeline.
Start verifying emails today — free lookups included, API access on every paid plan, and 1-click verification on every integration import.