Email Verifier - MX, SMTP & Disposable Check, No Paid API

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.

Email Verifier — Bulk SMTP & MX Validation, Catch-all

bovi/email-verifier

Verify email deliverability without sending mail. Syntax, MX lookup, SMTP probe, catch-all detection, disposable & role-account flags. Score 0-100 per email.

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 Verification API — Bulk SMTP, MX & Catch-All Check

sumitr_mardy/email-verifier

Bulk email verification with a flat, schema-stable output: syntax, MX/A, disposable/role/free lists, SMTP handshake and honest catch-all detection.

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 Verification MX Checker — Syntax, DNS & SMTP

perryay/email-verification-mx-checker

Verify email addresses with multi-layer checks: syntax validation, MX record lookup, SMTP mailbox verification, disposable domain detection, role-based detection, and domain typo suggestions.

Email Verifier & Validator - Bulk, Syntax, MX & Disposable

santhej/email-verifier

Bulk-verify email addresses: syntax, domain/MX deliverability, disposable, role-account, free-provider and typo detection. Fast, no API key, pay per email.

Verify email deliverability via syntax checks, MX lookups, and a non-intrusive SMTP RCPT probe. Flags disposable domains, role accounts, and catch-all servers. $0.001/email + $0.02 start.

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.

Email Verifier (Syntax + MX + SMTP)

andok/email-verifier

Verify email deliverability via syntax checks, MX lookups, and a non-intrusive SMTP RCPT probe. Flags disposable domains, role accounts, and catch-all servers. $0.001/email + $0.02 start.