
How to Stop Scammers from Sending Emails in Your Company’s Name (Spoofing)
Article Summary: Email spoofing is when a scammer sends a message that appears to come from your domain, often to trick your clients or staff into paying a fake invoice or changing banking details. Three DNS records (SPF, DKIM, and DMARC) prove that a message really came from you and tell receiving mail servers to reject the ones that didn’t. The catch is that DMARC only protects you once it’s set to “quarantine” or “reject,” and a lot of businesses leave it on “none,” which monitors but does not block.
Right now, with no special tools, someone could send an email that looks like it came from your company.
The From line would show your domain, your logo could be pasted into the message, and it could ask one of your clients to pay an invoice or update banking details. This is called email spoofing, and it is one of the most common ways fraud against your clients and suppliers begins.
There are three settings you can add to your domain that make this much harder to pull off.
They’re called SPF, DKIM, and DMARC.
Most businesses have one or two of them set up and the third missing.
That’s usually all it takes to let a spoofed email through. This post explains what each one does, the setting most businesses get wrong, and how to check your own domain.








