Supported by: 
If this setting is On, the SmartLink functionality is enabled on the server. SmartLinks are special URLs in the body text of e-mails, which are handled in a special way by the client and by the server. Typically, SmartLinks will point to Word documents, PDF files, or other binary files that are only available on the corporate intranet. When the URL link (SmartLink) is clicked in the client, the client will download the file, much like an attachment, and open it using the default application – for instance Pocket Word or QuickOffice – instead of attempting to open the resource in a browser.
In this field, you can define such SmartLinks. The links are defined as match strings, meaning that links that contain part or all of the text in a defined match string will be recognized as a SmartLink by the client. Note that to be recognized as a link at all, the link must begin with a text that can be identified as a link by the client, for instance http:, https:, or www..
You can specify multiple folders by separating the paths with the pipe character: |