Custom message attributes (CMAs) are additional attributes that
contain any information that is meaningful to you. For example, you
might add a company name, contact information, or a city location
to a message. You can have more than one CMA attached to a single
message.
This attribute information displays in the message browser in a
column you have previously created to contain it.
To add custom message attributes
Right-click the policy and select All TasksEdit...
Select Rules.
Select the rule to which you want to add custom message
attributes.
Select Modify.
Select Actions.
Select Message.
Select CMAs.
Click Add. The opens.
Type a name for the new custom message attribute in the
Name box, or select an existing custom message attribute
name in the list.
Type the custom message attribute to associate with this name
in the Value box.
Click OK. The custom message attribute appears in the
CMAs tab.