PostItem.Importance (Outlook)

Returns or sets an OlImportance constant indicating the relative importance level for the Outlook item. Possible return values are olImportanceHigh - Item is marked as high importance, olImportanceLow - Item is marked as low importance, olImportanceNormal - Item is marked as medium importance.

This property corresponds to the MAPI property PidTagImportance.

Session.CreateSharingItem.Move.Items(1).Importance = olImportanceHigh