An "Outlook Group" enables you to synchronize one or more Outlook Folders (e.g. Inbox, Sent Items, Contacts, Calendar, Notes) with your own computers or with other SYNCING.NET users.
You can create multiple "Outlook Groups". E.g. one "Outlook Group" to share a single Calender folder between all your colleagues and another network with all you personal Outlook folders (Inbox, Sent Items, Calendar, Contacts, etc.) between your PC and laptop. In other words, an "Outlook Group" describes which data (Outlook folders and its elements) you want to share with which person or computer.