Bulk Email Verifier & Finder - Mailbox Exists, SPF/DKIM/DMARC

Email Finder & Verifier

automation-lab/email-enrichment

Find and verify business email addresses using SMTP verification, pattern matching, and catch-all detection. Three modes: verify emails, find by name+domain, discover domain emails. Includes confidence scoring, disposable/free detection, and provider identification.

Email MX Verifier

maximedupre/email-mx-verifier

Check email syntax, MX records, disposable domains, role addresses, free providers, typo suggestions, and delivery risk. Export clean rows for CRM, outreach, signup, and data workflows.

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.

6-step pipeline: discover agencies on Clutch, Sortlist, AgencySpotter & DesignRush, analyze websites, verify emails, and send personalized cold email sequences with day-3 and day-7 follow-ups. SMTP, SendGrid & Mailgun supported. $0.25/run.

Bulk Email Verifier — MX, SMTP & Disposable Detection at Scale

ryanclinton/bulk-email-verifier

Verify email deliverability in bulk — MX records, live SMTP mailbox checks, disposable domain detection (55,000+ domains), role-based flagging, catch-all detection, and confidence scores. $0.005/email, no subscription.

Bulk email verifier: RFC 5322 syntax, MX lookup, 5400+ disposable blocklist, role-based (info@, sales@) detection, optional SMTP HELO+RCPT probe (never sends mail), and a 0 to 1 confidence score. For list cleanup and cold-email hygiene.

Lead Quality & Outreach Readiness Auditor — Decide & Benchmark

ryanclinton/enrichment-quality-auditor

Audit lead lists before outreach. Every lead gets a quality score, trust score, and a use/verify/repair/enrich/reject decision, then rolls up to account health, pipeline risk, and a vendor benchmark of which source delivers usable leads. Works with Clay, Apollo, ZoomInfo, CSV.

Lead Enrichment Pipeline — 5-47x Cheaper Than Clay

ryanclinton/lead-enrichment-pipeline

All-in-one lead enrichment: email discovery, phone finding, verification, company research, and lead scoring in one run. CSV or JSON in, scored leads out. $0.12/lead — 5-47x cheaper than Clay.

✅ Bulk Email Validator — Verify & Clean Lists

nexgendata/email-validator

Validate thousands of emails in bulk with DNS MX verification, syntax checking, disposable detection & free provider ID. Cheaper than ZeroBounce ($0.005 vs $0.008/email). Clean lists before campaigns to protect sender reputation.

SMTP Email Verifier

maximedupre/smtp-email-verifier

Check email addresses in bulk with syntax validation, MX records, SMTP RCPT TO mailbox probes, catch-all detection, disposable and role flags, confidence, and recommended actions. No email is sent.