Concern: Is having Outlook 2003 clients going to prevent me from deploying Exchange 2010

OVERALL STATUS: No, having Oulook 2003 clients is not a blocker. However, you need to understand the following sections and make configuration changes as applicable.

Back since November 9th, 2009 where Server 2010 released to manufacturing (RTM), there have been a growing concern around whether enterprises are prevented from upgrading or migrating their current 2003 or 2007 based messaging infrastructure to 2010, if 2003 clients is used within the organization.

But in  this article includes are a few additional concerns about and Outlook 2003

Exchange 2010 lack support for UDP Notifications

Exchange 2010 Exchange Server name appears as Instance – <GUID>

Exchange 2010 & Outlook 2003 Offline Address Book (OAB)

Exchange 2010 RPC over HTTP Connectivity

Exchange 2010 Opening multiple shared calendars & additional mailboxes

Exchange 2010 RPC Encryption Requirement

Exchange 2010 Public Folder Database requirement

exchange 2010

Special Thanks to Henrik Walther

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