Email Verifier MCP — DNS Email Verification
Pricing
from $5.00 / 1,000 mcp tool calls
Free, agent-native email verification over DNS — no API key, no per-lookup fee when self-hosted. RFC 5321 syntax, MX lookup, 182k disposable-domain blocklist, role-account detection. DNS-only by default; SMTP handshake opt-in. Hosted endpoint at $0.005/tool-call, pay-per-event.
All notable changes to email-verifier-mcp are documented here.
Format based on Keep a Changelog .
vitest 由 ^2.0.5(2.1.9) 升级至 ^4.1.11(4.1.11)，
修复 GHSA-5xrq-8626-4rwp(critical, 需 ≥3.2.6) 与 GHSA-82fw-gwwq-j7x9(low, 需 ≥4.1.11)。
仅测试工具链受影响，运行时不加载 vitest，npm audit(含 dev) 现为 0 vulnerabilities。Dockerfile build stage 固定 npm@11，规避 npm 10.x arborist
#loadPeerSet 在 vitest 4 peer deps 上导致的 npm ci 退出码 1（本地 Node 24 npm 11.9 正常）。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.