Email Exposure Check

NEXETTE / Security Tools / Email Exposure Check

See how easy your email domain may be to spoof.

A lot of phishing works because organizations assume their email domain is better protected than it really is. This tool checks public email trust signals like `SPF`, `DMARC`, common `DKIM` selectors, and mail routing clues to show how exposed a domain may be to spoofing and impersonation.

What This Checks

The results focus on public DNS and mail trust signals that influence how well your domain resists spoofing. It does not prove every mail path is secure, but it does show whether the basic controls are strong, weak, or missing.

SPFWhether your domain defines allowed outbound senders.
DMARCWhether your domain has a real enforcement policy or just monitoring.
DKIMBest-effort checks for common selectors used by major platforms.
Mail routingMX and provider hints that help explain the result in context.
Why it matters

Weak mail authentication can make domain impersonation easier, especially during phishing or business email compromise attempts.

What strong looks like

Good posture usually means a valid SPF record, DKIM signing on active platforms, and DMARC moved beyond monitor-only mode.

What weak looks like

No DMARC, a `p=none` policy, broken SPF, or missing DKIM on major senders usually leaves more room for abuse.

One caution

DKIM discovery is best-effort here. Selectors cannot always be enumerated publicly, so the tool explains that uncertainty instead of overclaiming.

Want a deeper email security review?

This tool checks the public surface. A deeper NEXETTE review can go further into mail flow, spoofing exposure, third-party senders, phishing resistance, and email security policy gaps across the organization.

Email: info@nexette.com Call: 703-828-7888

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