You have created a folder in Outlook to store some of your e-mails. You decide to create a GrooveIT! rule upon this existing folder in order to automatically transfer to Groove any email you will move to this folder. See also the video: How-To : Create a GrooveIT! rule on an emails folder.

You can do the same for already existing emails. When creating the GrooveIT! rule, select “options” in the last window of the assistant, and tick the “Run this rule now !” box.

In this way you not only create the rule, but you also immediately apply it to all existing e-mails.