Email Verifier - Bulk Syntax, MX, SMTP, Disposable Check

Bulk-validate email addresses: syntax, MX, disposable/role-based detection. For cold-email hygiene at scale.

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.

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.

Email Verifier

leadsbrary/email-verifier

Verify emails in bulk: syntax, MX lookup, SMTP RCPT TO, catch-all detection & disposable domains. Get a 0–100 confidence score per email. Faster and cheaper than Hunter, ZeroBounce or NeverBounce.

Verify email addresses via three checks — RFC syntax, DNS MX record presence, and SMTP RCPT TO probe with a short timeout. One row per email with verdict, MX hosts, reason. Pure protocol, datacenter-friendly.

Bulk-validate email addresses: syntax, MX-record check, disposable / role-based detection. For sales-CRM hygiene and bounce-rate reduction.

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.

Email Verifier

crawlerbros/email-verifier

Verify email addresses for deliverability. Check syntax, MX records, disposable domains, role-based addresses, and SMTP mailbox existence.

Validate email addresses via syntax, MX, SMTP RCPT probe, disposable-domain list, free-mail flag, role-account flag, and catch-all detection. Self-contained — no upstream paid API.

Bulk email verifier, validation API, and email checker for lead lists. Check syntax, MX records, disposable domains, free providers, role accounts, catch-all domains, and optional SMTP reachability. Clean CRM/cold email lists, reduce bounces, and verify leads. No API key required.