Could someone send email pretending to be you?

Enter your company's domain name and we'll check the three DNS records that protect your email from spoofing: criminals sending fake email that looks like it came from your business.

And spoofing is only half of it. Gmail, Yahoo, and Microsoft's Outlook.com now reject mail from high-volume senders that fails these checks, and filter everyone else's harder. The same three records decide whether your own invoices and quotes reach the inbox.

What are these checks?

SPF

Sender Policy Framework: a public list of the mail servers allowed to send email for your domain. Like a guest list at the door.

DKIM

DomainKeys Identified Mail: a tamper-proof digital signature added to every email you send. Like a wax seal on a letter.

DMARC

Domain-based Message Authentication, Reporting & Conformance: the rule that tells the world what to do with email that fails the first two checks. Deliver it, spam-folder it, or reject it.