Ensure Spam confidence level (SCL) is configured in mail transport rules with specific domains
Why This Matters
Unrestricted email from specific domains can allow spam, phishing, or malicious content to reach users without proper filtering. By setting a Spam Confidence Level (SCL) in mail transport rules, you ensure that messages from allowed domains are still evaluated for spam, reducing the risk of a security incident while maintaining necessary communications.
What Aether365 Checks
This check verifies that mail transport rules in your Microsoft 365 tenant include a configured Spam Confidence Level (SCL) for rules that apply to specific domains. It appears in the Aether365 dashboard under the Microsoft 365 security checks section.