Slow mail flow rules insight

Slow mail flow rules insight

Inefficient mail flow rules (also known as transport rules) can lead to mail flow delays for your organization. This insight reports mail flow rules that have an impact on your organization's mail flow. Examples of these types of rules are:

  • Conditions that use Is member of for large groups.

  • Conditions that use complex regular expression (regex) pattern matching.

  • Conditions that use content checking in attachments.

The insight will help you to identify and fine-tune mail flow rules to help reduce mail flow delays.

A slow mail flow rules insight in the mail flow dashboard in the Office 365 Security & Compliance Center

When you click View details, a flyout pane appears where you can review the rule. In the flyout pane, can also click view sample messages to see what kind of messages are impacted by the rule.

Flyout pane after clicking View details in a slow mail flow rules insight in the mail flow dashboard
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