Domain security, in plain language.
Short guides to the problems we see most often, what they mean for your business, and exactly how to fix them. Every one ends with a free check of your own domain.
Email authentication
How to fix a DMARC p=none record and stop domain spoofing
A p=none DMARC record leaves your domain open to spoofing. Here is what p=none means, why it is not protecting you, and the exact record to move to quarantine and then reject safely.
5 min readRead the guide
Mail transport securityWhat is MTA-STS and why your domain needs it
MTA-STS stops mail to your domain being quietly downgraded to an unencrypted connection an attacker can read. Here is how it works and what it takes to turn it on.
5 min readRead the guide
Brand and domain abuseLookalike domains: how to find and stop domain impersonation
A domain one character away from yours can send invoices and phishing that look like they come from you. Here is how lookalike domains work and what you can do about them.
5 min readRead the guide
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