|Publisher Developer Reference|
Version Added: Publisher 2007
expression A variable that represents a MailMergeDataSource object.
If you create an add-in for Microsoft Office Publisher that validates recipient addresses and maintains its own data sources, your add-in can set the ValidatedClean property value to True after a successful validation.
The ValidatedClean property value is not persisted in the Publisher file, and is set to False by default when you first open a publication.
Publisher resets the ValidatedClean property value to False whenever you add a new data source, change a filter setting, or change a sort setting.