If you are looking for the full feature set included in the original software, it introduced several major updates over previous versions:
Allows management of multiple accounts (Gmail, Yahoo, etc.) in one place. Outlook 2010 Free
A centralized "File" menu for managing settings, printing, and accounts. If you are looking for the full feature
In Outlook 2010, availability is color-coded: white for Free , blue for Busy , hash marks for Tentative , and purple for Out-of-Office . and accounts. In Outlook 2010
Replaced traditional toolbars across the entire application for easier access to tools.