DKIM SHOULD be enabled for all domains.

Why This Matters

Email authentication is critical to prevent spoofing and phishing attacks that use your domain. Without DKIM, attackers can forge emails that appear to come from your organization, damaging your brand reputation and compromising recipients. Enabling DKIM gives receiving mail servers a cryptographic way to verify that emails genuinely originated from your domain.

What Aether365 Checks

This check verifies that DKIM signing is enabled for all custom domains in your Microsoft 365 tenant. It appears in the Aether365 dashboard under the Microsoft 365 checks section.