SPF, DKIM, DMARC: The Email Security Trio Every Business Needs

If you run a business and send emails from your own domain, you’ve probably come across SPF, DKIM, or DMARC — or at least had them flagged in a scan. They’re not just technical jargon. They’re the backbone of modern email security.

And the truth? Most domains still get them wrong.

Why it matters

Email remains the #1 entry point for cyberattacks. If your domain isn’t protected, anyone can spoof your address — sending emails that look like they came from you. That erodes trust, damages deliverability, and makes your business look sloppy.

What each one does

• SPF (Sender Policy Framework) lists the IPs or services (like Microsoft 365 or Google) that are allowed to send emails on your behalf.
• DKIM (DomainKeys Identified Mail) adds a digital signature to outgoing messages — proof they haven’t been tampered with.
• DMARC (Domain-based Message Authentication, Reporting & Conformance) ties it all together. It tells receiving servers what to do when SPF or DKIM checks fail, and gives you reports on what’s happening behind the scenes.

Without them?

Your emails could:

• 🚫 Go straight to spam
• ❌ Fail to deliver
• 🎭 Be spoofed by scammers

And you won’t even know. DMARC reports only work after you’ve set it up.

How Domain Forge helps

Every Secure and Solid setup includes properly configured SPF, DKIM and DMARC — plus TLS encryption, MTA-STS, and passive monitoring to keep things secure and visible.

No DNS wrangling. No confusing dashboards. We scan, fix, and hand it back clean — ready to send with confidence.