Sniffmail – Email verification API, one NPM install, catch fake-signups

Show HN: Sniffmail – Email verification API, one NPM install, catch fake-signups

Based, Sniffmail – Email verification API, one NPM install, catch fake-signups works in show hn launch.

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I built Sniffmail because I was tired of fake and disposable emails getting through signup forms on every project I shipped.It verifies email addresses at the SMTP level without sending an email. One API call returns whether the mailbox exists, is disposable, has a full inbox, or is a catch-all domain.Install with npm install sniffmail, call validateEmail("user@example.com"), get a verdict.REST API available for non-Node stacks.What it checks: SMTP mailbox existence (connects to the mail server, confirms the address is real),disposable/temporary email detection (Mailinator, 10 Minute Mail, Guerrilla Mail, etc.), full inbox detection, catch-all domain identification, and MX record validation.

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The company is listed at the Show HN launch stage of development.

Website: sniffmail.io