Plain-English DNS guidance
Translate SPF, DKIM, DMARC, and MX findings into practical next steps.
Domain & email security posture
DNS Security Checker for SPF, MX, DMARC & Spoofing Risk
Use United Tech Labs to understand email authentication posture in plain business language. SPF, DKIM, and DMARC-style controls help reduce spoofing and phishing risk.
Benefits
Spoofing exposure review
Understand how missing or weak email records can support impersonation.
Business-safe recommendations
Plan careful DNS changes without breaking legitimate mail delivery.
How it works
1. Enter domain
Start with the domain used for business email.
2. Review posture
Check SPF, MX, DMARC status and DKIM guidance.
3. Fix safely
Document providers, test alignment, then improve policy gradually.
FAQ
Does DMARC replace SPF or DKIM?
No. DMARC is a policy layer that builds on SPF/DKIM-style authentication and alignment.
Can DNS changes break email?
Yes. Confirm legitimate senders before strict enforcement.