Enter your domain below. In about ten seconds you will see whether your email is protected, and exactly what to fix if it is not.
This runs in your browser and reads only the public DNS records your domain already publishes to the world. We do not store your domain, and nothing is sent to us.
These four settings are what stop a scammer from sending email that appears to come from your address, to your customers, your staff, and your bank.
A public list of which mail servers are allowed to send email for your domain. Without it, anyone's server qualifies.
A tamper-proof signature on every message you send, so the receiving mail server can prove it really came from you.
Your instruction to the rest of the internet on what to do with mail that fails the checks above. Deliver it, bin it, or block it.
Whether your mail servers have landed on a spam blacklist, which quietly sends your legitimate email to the junk folder.