The user interface in the newest version of Outlook has been revamped with a more modern design, improved scrolling and faster loading. Microsoft also improved its Exchange functionality with faster syncing and online archive support that allows users to search their Exchange archive from within Outlook
Better performance and reliability as a result of a new threading model and database improvements.
A new modern user interface with improved scrolling and agility when switching between Ribbon tabs.
Online archive support for searching Exchange (online or on-premises) archived mail.
Master Category List support and enhancements delivering access to category lists (name and color) and sync between Mac, Windows and OWA clients.
Office 365 push email support for real-time email delivery.
Faster first-run and email download experience with improved Exchange Web Services syncing.