Email Authentication & Domain Protection

Stop Email Spoofing Before It Hits Your Business

Your domain may look fine on the surface while still being vulnerable to spoofing, phishing, and silent deliverability issues. We identify the gaps and fix them.

Request Your Free Email Security Check See What We Check
SPF DKIM DMARC MTA-STS TLS-RPT DNSSEC BIMI

Email Security Gaps We Commonly Find

  • DMARC in monitoring mode only
  • Missing transport security records
  • Weak or outdated DKIM configuration
  • SPF records too complex or broken
  • No visibility into who is sending mail
  • Domains still vulnerable to impersonation

The Problem

Your business can still be exposed even when email “works.”

Most companies assume that because they use Microsoft 365 or Google Workspace, their domain is secure. It often is not. A domain can send and receive email while still being open to spoofing, poor policy enforcement, and hidden delivery issues.

  • Your domain may still be spoofable
  • Messages can fail authentication or land in spam
  • Security records are often incomplete or outdated
  • You may have no reporting or visibility into email activity

What We Check

We run a full Email Authentication & Domain Health Assessment

We review the records, policies, and supporting protections that determine whether your domain is trusted, enforceable, and properly aligned.

SPF

We verify who is authorized to send email for your domain and clean up risky or overloaded records.

DKIM

We validate message signing, selector health, and key strength so your mail can be trusted downstream.

DMARC

We check policy, alignment, reporting, and whether your domain is truly protected or just “monitoring.”

MTA-STS & TLS-RPT

We verify whether mail transport is enforced and whether you have visibility into TLS delivery failures.

BIMI

We assess readiness for inbox logo display and brand trust enhancements tied to stronger DMARC posture.

DNS & Domain Health

We review DNSSEC, MX health, supporting records, and structural issues that can affect trust and delivery.

What We Find

Most domains are only partially protected

In the real world, “configured” does not mean “secure.” We commonly find domains that appear to be set up properly but still have meaningful gaps.

Common Findings

  • DMARC set to none or quarantine without full enforcement
  • Missing MTA-STS and TLS reporting
  • Legacy or weak DKIM selectors
  • SPF lookup pressure, errors, or unnecessary includes
  • Unknown senders or third-party platforms still attached to the domain
  • No reporting to show what is actually happening

Bottom Line

Your email can still be exposed to impersonation, spoofing, and delivery problems even when users do not notice anything wrong day to day.

Set up does not equal secured.

What We Fix

We don’t just report the problem. We lock it down.

Eliminate domain spoofing risks
Move DMARC from monitoring to enforcement
Correct SPF structure and reduce lookup issues
Strengthen DKIM alignment and selector health
Enable transport security protections
Turn on reporting and sender visibility
Improve DNS trust and domain integrity
Prepare the domain for BIMI and brand trust

What You Get

Stronger protection, better deliverability, and clear visibility

This is not just about email records. It is about protecting your business identity and making sure only authorized systems can send mail as your company.

  • Protection against domain impersonation
  • Improved email deliverability
  • Visibility into sending sources
  • Stronger trust with clients and vendors
  • Cleaner DNS and authentication posture
  • Ongoing monitoring and support options

Free Domain Check

Let us scan your domain and show you exactly where you stand.

No obligation. No guesswork. Just a clear review of your email authentication and domain protection posture.

CAER Technologies [email protected] 830-510-3700