

The short names and full click path values are shown in the EAC column in the tables. Also, when you create new rules based on a template (a filtered list of scenarios), you can often select a short condition name instead of following the complete click path. Message sensitive information types, To and Cc values, size, and character setsĪfter you select a condition or exception in the Exchange admin center (EAC), the value that's ultimately shown in the Apply this rule if or Except if field is often different (shorter) than the click path value you selected. The property types are described in the Property types section. The tables in the following sections describe the conditions and exceptions that are available in mail flow rules in Exchange Online. Conditions and exceptions for mail flow rules in Exchange Online For example, the Any attachment has executable content condition simply looks for attachments in messages that have executable content.įor more information about mail flow rules in Exchange Online, including how multiple conditions/exceptions or multi-valued conditions/exceptions are handled, see Mail flow rules (transport rules) in Exchange Online. Some conditions or exceptions don't have any properties. For example, the A message header includes any of these words condition requires one property to specify the message header field, and a second property to specify the text to look for in the header field. For example, the The sender is condition requires the sender of the message. Most conditions and exceptions have one property that requires one or more values. The only difference is conditions specify messages to include, while exceptions specify messages to exclude.

Collectively, the conditions and exceptions in mail flow rules are also known as predicates, because for every condition, there's a corresponding exception that uses the exact same settings and syntax. For example, if the rule adds a disclaimer to messages, you can configure the rule to only apply to messages that contain specific words, messages sent by specific users, or to all messages except those sent by the members of a specific distribution group.

Conditions and exceptions in mail flow rules (also known as transport rules) identify the messages that the rule is applied to or not applied to.
