Show AllThe feature or some of the options described in this Help topic are only available if support for right-to-left languages is enabled through Microsoft Office Language Settings.
Microsoft Outlook provides several options that are used specifically for searching for strings of text containing right-to-left text in either paragraph direction.
When conducting a standard search, you can select check boxes to search for text with matching kashidas (Arabic only), alef hamza (Arabic only), or diacritics.