GUIDES

Email verification, explained.

Plain-English guides to verification, deliverability and clean lists — plus honest comparisons for teams choosing a tool.

Email verification basics

What email verification actually checks — syntax, MX records, disposable domains, SMTP — and when it's worth running.

Upload, verify, and export a clean email list — plus how to read list health scores and handle risky addresses.

How throwaway inboxes hurt signup quality and deliverability, and how disposable detection works.

Practical steps to cut hard bounces: verify at signup, clean lists before sends, and monitor sender reputation.

A practical routine for keeping mailing lists healthy: what to remove, what to keep, and how often to clean.

How to call an email verification API, read the response, and decide what to do with valid, risky, and invalid results.

What MX records do, how to check them, and what missing or misconfigured MX records mean for your email.