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Email Domain Security & Deliverability Scanner

Check any domain's SPF, DKIM, DMARC, MX records, and disposable-email risk in seconds. Protect your brand from spoofing and stop landing in spam.

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Comprehensive Technical Analysis & Guide

In-depth breakdown, safety recommendations, and operational mechanics.

1The Anatomy of Email Spoofing & BEC Attacks

Business Email Compromise (BEC) costs organizations billions annually. Attackers forge the 'From' header using domains with no DMARC enforcement, impersonating executives to divert wire transfers. A single missing DMARC record is an open door.

2Reading Your DNS Results

MX records route inbound mail. SPF authorizes senders. DMARC (at _dmarc.yourdomain) sets the enforcement policy: none (monitor), quarantine, or reject. DKIM keys live at selector._domainkey.yourdomain.

3Achieving a Grade-A Deliverability Posture

Publish valid MX, a scoped SPF (~all for testing, -all for enforcement), DKIM signing via your provider, and a DMARC policy that escalates from p=none to p=reject after 30 days of clean reports.

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Frequently Asked Questions

Verified answers to common queries regarding this lookup target and security protocols.

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