Picture this:
A client gets an email that looks like it’s from you.
It has your logo. Your sender name. Your tone. It’s asking them to review an invoice or approve a payment.
But it’s not from you.
It’s from someone pretending to be you…using your domain.
The Threat You Can’t See
Most small businesses don’t realize their email domain can be used against them. Hackers don’t need to break into your systems to cause damage, they just need to send a convincing fake message from your name.
It’s quiet. It’s invisible. And it works.
And they fall for it.
That’s email spoofing. And without DMARC, SPF, and DKIM in place, it’s shockingly easy to pull off.
DMARC, SPF, and DKIM: Your Domain’s Defense System
These three email security protocols work together to stop spoofing before it reaches your clients, vendors, or employees.
Here’s what they do in plain English:
- SPF tells the world which mail servers are allowed to send email on your behalf.
- DKIM adds a digital signature to verify the message hasn’t been altered.
- DMARC ties them both together and tells receiving servers what to do with suspicious emails (flag them, quarantine them, or reject them completely).
Why Your Small Business Needs Email Spoofing Protection
Protect your brand: One fake email can cost you a client’s trust—or worse, real money.
Stop phishing at the source: These tools block unauthorized emails before they even land.
Keep your emails out of spam: Providers trust authenticated emails more.
Stay compliant: HIPAA, GDPR, and other regulations expect basic protections like these.
Know who’s using your domain: DMARC reports show where your domain is being used—legitimately or not.
The Risk of Doing Nothing
- Your domain can be impersonated.
- Your real emails can start going to spam, or be blocked completely.
- You’ll have no idea it’s happening until it’s too late.
- You might be out of compliance without realizing it.
- Worst of all, a spoofed email that looks like it came from you could lead to fraud, legal issues, or public embarrassment.
Why This Matters Right Now
Big providers like Google and Yahoo have started requiring DMARC to avoid email rejections. If you’re not properly set up, your legitimate messages could stop reaching inboxes.
The bad guys are getting smarter. But the good news is, this is fixable.
How We Can Help with DMARC, SPF, & DKIM Setup
Setting this up isn’t always straightforward. We’ve seen plenty of businesses try to do it themselves and misconfigure something, only to break email entirely.
At Prosper, we:
Set up DMARC, SPF, and DKIM correctly
Monitor and manage ongoing authentication
Send easy-to-read reports that show who’s sending on your behalf
Fix it fast if anything goes wrong
Next Step: Know Where You Stand
Most companies have no idea if their domain is vulnerable. That’s why we’re offering a free email protection review. We’ll take a look, show you what’s missing, and walk through how to fix it.
Final Thought
Cyberattacks don’t always start with a data breach. Sometimes, they start with a fake email that looks a little too real.
If you’re not protecting your domain, you’re leaving the door wide open.
