Internet Connection
On slower connections, such as dial up and cellular modems, and Internet connections slower than 128 kbps, Outlook performance may slow significantly. Customers should configure Outlook to download message headers only. Outlook 2007 and later may be used without an Internet connection in "Offline Mode" to access emails already downloaded from the Exchange servers. Outlook requires 128 kbps of bandwidth for optimal performance.
Operating Systems
MS Windows XP and later  
Mac OSX 10.X and later Supports Microsoft Entourage 2004 and later and Outlook Web Access Light. Note: Microsoft Entourage included with Home and Student edition will not connect to exchange
Linux Any Linux operating system Supports Outlook Web Access Light only
Mail Clients
Microsoft Outlook


2007 and later

 
Microsoft Entourage for Mac 2004 and later
 
POP3/IMAP4 Clients Microsoft Outlook Express or any other POP/IMAP client that supports secure connections.  
Web Access
Outlook Web Access Internet Explorer version 6 or later  
Outlook Web Access Light Any web browser that supports frames  
Wireless Devices
BlackBerry Any BlackBerry handheld device running BlackBerry OS version 4.x or later Requires an active data plan or Internet connection from your mobile telephone service provider.
Windows Mobile Any Windows Mobile device running Windows Mobile version 5.x or later Requires an active data plan or Internet connection from your mobile telephone service provider.
Android Any Android device Requires an active data plan or Internet connection from your mobile telephone service provider.