Free domain health tool

Check email health for any domain.

Review MX records, SPF, DMARC, provider signals, and disposable-domain risk before trusting a domain for email validation or outreach.

Receiving setup

MX records show whether a domain is configured to receive mail and which provider handles routing.

Sender trust

SPF and DMARC help receiving systems evaluate whether messages are authenticated.

Validation context

Domain health does not prove a mailbox exists, but it gives useful context before running an address-level Basic Check.

Need address-level risk signals?

Run a Basic Check to combine domain signals with syntax, typo, disposable, role-inbox, and provider analysis. Free accounts include 25 Verified Checks for provider-backed mailbox signals.

Check an email