HoHoHo my friends!
It’s that time of the year to start watching The Grinch and al that stuff right? 
The Outlook Team blogged about some features that will be no longer in use in Exchange Server 2013 and here is a short list:
- Exchange “Classic Offline” mode
- Deliver to PST for Exchange accounts
- Calendar Publishing to office.com (PubCal)
- VPN and Dialup Settings
- Outlook Search via Windows Shell
- Journaling
- Import/Export to Legacy Applications
- Legacy Contact Linking/Activites Tab
Something seems important to you? Please check the original post with all information about each one of the features above: http://blogs.office.com/b/microsoft-outlook/archive/2012/12/19/outlook-2013-deprecated-features-and-components.aspx
Cheers and Happy Holidays,
Anderson Patricio
http://www.andersonpatricio.ca
http://www.andersonpatricio.org (Portuguese)
Twitter: @apatricio