High Confidence Spam action set to Quarantine message.

Why This Matters

High confidence spam messages can slip past standard antispam filters and reach user inboxes, exposing the organization to phishing attacks or malicious content. Configuring the action for high confidence spam ensures these dangerous messages are automatically quarantined rather than delivered, reducing the risk of user interaction with harmful emails. Without this setting, your organization remains vulnerable to advanced spam campaigns that bypass lower tier filters.

What Aether365 Checks

Aether365 verifies that the high confidence spam filter action is set to quarantine messages instead of allowing them to be delivered or moved to junk. This check appears in the Aether365 dashboard under the microsoft-365 category and is part of the broader antispam policy review.