# Changelog of Bulk SMTP Email Verifier — Mailbox & Catch-All Checker (`automation-lab/smtp-email-verifier`) Actor

- **URL**: https://apify.com/automation-lab/smtp-email-verifier/changelog.md
- **Full Actor documentation**: https://apify.com/automation-lab/smtp-email-verifier.md

## Changelog

### 2026-09-18

*Reliability*

- SMTP verification now falls back to additional advertised MX servers when the preferred server is unreachable, reducing avoidable `unknown` results while preserving conservative handling of temporary and anti-probe responses.

### 2026-05-22

*Features*

- Launched bulk email verification with SMTP mailbox checks and classifications for valid, invalid, catch-all, disposable, unknown, and risky addresses.