Email Validator - Bulk Checker, MX & Risk Signals

Bulk email verification and validation API for lead lists. Check syntax, MX records, disposable/free domains, role accounts, catch-all behavior, and optional SMTP signals. Clean CRM lists and assess email risk without an API key. Results do not guarantee mailbox ownership, reachability, or delivery.

Verify emails in bulk without sending mail: syntax, MX, SMTP mailbox probe, catch-all, disposable, role, free & SPF/DMARC/DKIM. Get deliverable/undeliverable/risky verdict + 0-100 score. Clean your lead list before you send. No API key.

Bulk Email MX Verifier — Cold Email List Cleaner

automation-lab/email-mx-verifier

Clean scraped or purchased B2B lead lists before outreach. Bulk-check email syntax, MX records, disposable domains, providers, role/risk signals, and optional SMTP probe with no external API. Export CSV/JSON for Instantly, CRM, and campaign tools.

Bulk SMTP Email Verifier — Mailbox & Catch-All Checker

automation-lab/smtp-email-verifier

Deep-verify lead emails with SMTP RCPT checks before campaign upload. Classify valid, invalid, catch-all, disposable, unknown, and risky mailboxes; no email is sent and no third-party verification API is required.

Disposable Email Checker & Validator

junipr/disposable-email-checker

Detect disposable, temporary, throwaway, and risky email domains with bulk validation, MX checks, allow/block lists, and exportable cleanup reports.

📞 Phone Number Validator - Line Type, Country, Bulk

renzomacar/phone-validator

Validate and enrich phone numbers in bulk: valid/possible, line type (mobile/landline/VoIP), country, E.164 format, and outreach risk flags. Offline libphonenumber engine, no API key. A NumVerify/Twilio Lookup alternative for cleaning lead lists.

Bulk Email DNS Audit Scraper

taroyamada/email-deliverability-portfolio-audit

Scrape domain DNS data to extract SPF, DKIM, DMARC, and BIMI records. Generate structured deliverability readiness reports for client portfolios.

Structured Data Scraper & Validator

taroyamada/structured-data-validator

Crawl websites to extract JSON-LD and Microdata, validate schema markup syntax, and flag missing fields across massive URL lists.

MX Lookup — Email DNS, SPF, DKIM & DMARC

junipr/mx-lookup

Check MX, SPF, DKIM, DMARC, TXT, CAA, and email DNS records in bulk with validation findings and deliverability diagnostics.

Sanctions Screening Suite: OFAC, EU, UK, UN & PEP Watchlists

apifmcpfactory/sanctions-screening

All-in-one sanctions screening suite for teams and AI agents. Screen, monitor and export against official OFAC, EU, UK OFSI, UN and OpenSanctions PEP watchlists. Get a CLEAR/REVIEW/ESCALATE verdict, auto-cleared false positives, an audit PDF and crypto-wallet screening. Official data, nothing stored