N49 Security

Email Authentication

Help other mail systems recognize email sent by your business.

SPF, DKIM, and DMARC configured to help receiving systems verify legitimate business email.

Why it matters

Your domain should clearly identify which services are allowed to send in its name.

Incomplete or incorrect authentication can make impersonation easier and legitimate messages less reliable.

What we do

Email Authentication from review to handoff

Understand the requirement

We identify every approved sending service, current DNS records, alignment, delivery needs, and existing authentication reports.

Put it in place properly

We configure SPF, DKIM, and DMARC correctly, test approved senders, and move enforcement forward safely.

Test and hand over

We verify the email authentication setup, explain the important decisions, and make sure your business retains the access and information needed to manage it.

What you get

What email authentication can include

  • Approved sender inventory
  • SPF configuration
  • DKIM configuration
  • DMARC policy and reporting
  • Alignment and delivery testing
  • Authentication documentation

Ready to discuss email authentication?

Tell us what your business uses today and what needs to be protected, improved, or replaced within email & domain protection.