Email Verifier: Syntax, MX, Disposable & Optional SMTP

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.

Bulk-validate emails at scale: syntax, MX-record lookup, disposable & role detection, catch-all & spam-trap flags, with a status + deliverability score per address. Keyless, pay-per-email, no credit packs or sales call. Agent-native (x402 + MCP). Cut bounce rates, protect sender reputation.

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.

Email Validator & Verifier — MX, SMTP & Syntax

junipr/email-validator

Validate email addresses in bulk with syntax, domain, MX, disposable-domain, role-account, and optional SMTP checks for list QA.

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.

Clean and score any email list. Checks syntax, domain MX records, disposable/free providers, and role addresses, with optional SMTP mailbox probing and catch-all detection. Feed it a list or another Actor's dataset.

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 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.

LinkedIn Company Employees Scraper — B2B Prospect List Builder

automation-lab/linkedin-company-employees-scraper

Extract LinkedIn employee profiles from company pages — names, titles, locations, profile URLs, and company context. Build account-based B2B prospect lists, then enrich domains and verify emails with Website Contact Finder and Bulk Email MX/SMTP Verifier.