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Fix slow mail flow rules insight in the new EAC in Exchange Online

  • Artikkeli

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 Fix slow mail flow rules insight in the Insights dashboard in the new Exchange admin center (new EAC) will notify you when a mail flow rule is taking too long to complete. You can use this notification to help you to identify and fine-tune mail flow rules to help reduce mail flow delays.

Fix slow mail flow rules insight in the Insights dashboard.

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

Details flyout that appears after clicking View details in the Fix slow mail flow rules insight.

For more information about conditions and exceptions in mail flow rules in Exchange Online, see Mail flow rule conditions and exceptions (predicates) in Exchange Online.

For more information about other mail flow insights in the mail flow dashboard, see Mail flow insights in the new Exchange admin center.