When your email is working fine and your website is live, it’s easy to assume your domain is in order. But as a Google Workspace and Microsoft 365 partner, we spend a lot of time looking "under the hood" of business domains, and what we find is often surprising.
Even for businesses that seem perfectly secure, there are almost always invisible gaps that hackers can exploit. This is where DMARC (Domain-based Message Authentication, Reporting, and Conformance) comes in.
To show you why this matters, let’s look at what we typically find when we begin monitoring a new client’s domain.
1. The "Compliance" Gap
Most business owners assume security is an all-or-nothing game. However, a domain audit often reveals a "Compliance Gap."
We recently monitored a domain that appeared to be doing well with a 95.8% compliance rate. In a school grade, that's an A+. But in cybersecurity, that remaining 4.2% non-compliance represented thousands of emails being sent without proper "ID cards."
These are the emails hackers use to spoof your identity, pretending to be you to trick your customers or vendors into changing payment details or clicking malicious links.
2. The "Deliverability" Gap
This isn't just about hackers; it’s about your own legitimate business tools.
Most modern companies use a mix of services—Outlook for daily mail, Salesforce for CRM, or Mailchimp for marketing. Each of these services needs permission to "speak" on behalf of your domain.
When we audit these services, we often find "Red Bars" in the data. This means a service you pay for is failing security checks. When that happens, providers like Google and Yahoo don't just get suspicious—they send your invoices and project updates straight to your recipient's Spam folder.
DMARC is the Shield
At Interlock IT, we are now recommending a DMARC rollout for all our clients to close these gaps for good. Here is how it protects you:
Preventing Identity Theft: We move your domain to a "Quarantine" or "Reject" policy. This creates a security gate. If an unauthorized person tries to send an email as you, it’s either blocked entirely or tossed into the junk folder before it can do damage.
Maximizing Inbox Delivery: We align all your third-party tools (like Klaviyo or Zoho) so that big email providers trust your mail. This ensures your legitimate business emails land in the primary inbox, not the junk folder.
Total Visibility: You get monthly audits that identify exactly who is sending mail to your domain.
Implementation: Doing it Right
DMARC is a powerful tool, but it's a precision instrument. If it’s set up incorrectly, you can accidentally "lock yourself out" and block your own legitimate emails.
We handle the configuration, testing, and final "lockdown" for a standard one-hour consulting fee (typically around $175). It’s a small investment to ensure your domain is no longer a target.
Is your domain truly secure? Reach out to us for a quick audit. We’ll take a look under the hood and show you exactly where your gaps are before a scammer finds them first.