Email Verifier MCP — DNS Email Verification
Pricing
from $5.00 / 1,000 mcp tool calls
Remote MCP server for email verification. RFC 5321 syntax, MX lookup, 160k disposable-domain blacklist and role-account detection. DNS-only and compliant by default; SMTP handshake is opt-in. Zero third-party API fees.
All notable changes to email-verifier-mcp are documented here.
Format based on Keep a Changelog .
check_email tool: DNS-based single-email verification (RFC 5321 syntax, MX lookup, disposable + role-account detection). Optional opt-in SMTP handshake.verify_bulk tool: batch verification of up to 10 emails.check_mx tool: standalone MX-record lookup.is_disposable tool: disposable / throwaway domain blacklist check.blacklist://stats resource: loaded disposable-domain blacklist size + source.verify_signup_email prompt: reusable accept/reject decision template for signup flows.HOSTED_MODE=1): Streamable HTTP transport with Bearer auth, per-key rate limiting, and DNS-rebinding protection (mitigates CVE-2025-66414).smithery.yaml for one-command discovery.Default verification is DNS-only (no outbound SMTP). SMTP handshake is opt-in and documented as potentially subject to recipient-server anti-scanning policies; it must be enabled only from infrastructure the operator controls. This keeps the default distribution compliant.