Lookups · No signup for browser use
Email Verification Lookups
DNS-style checks in the browser — disposable screening, MX records, domain authentication, and a test email verification lookup. Live mailbox verification is 1 credit per email on the API and dashboard.
Test Email Verification
Run a syntax, MX, and disposable lookup on an address — not a live mailbox check.
Disposable Email Checker
See if an email or domain belongs to a known temporary/disposable provider.
MX Lookup
Look up MX records for any domain to confirm it can receive email.
Email Deliverability Checker
Score SPF, DKIM, and DMARC for a domain and get concrete fix recommendations.
Prefer to use these tools from an AI assistant?
RocketVerifier ships an official MCP server — the same lookups above plus verify_email and bulk jobs are available inside Claude, ChatGPT, and Cursor.
Need full SMTP verification?
These pages run lookups only. For live SMTP mailbox verification, sign up and use the API or dashboard (1 credit per email). Eligible work emails can apply for 100 free credits after signup.