Microsoft today announced that they are adding back the "support for User Datagram Protocol (UDP) notification functionality into Microsoft Exchange Server 2010."
"The functionality will be re-introduced in Exchange Server 2010 Service Pack 1 Roll-Up 3 (SP1 RU3). As a result, we have adjusted the RU3 schedule in order to complete the engineering work required to include UDP support within the rollup, which we now expect to release in March," stated Microsoft
"While Outlook 2010 is the best way to experience all that Exchange 2010 has to offer, you have been very clear that many of you have longer client deployment cycles or are waiting for a desktop hardware refresh before upgrading clients. Regardless of the reasons, those of you who have users running Outlook 2003 have seen those users' Outlook performance degrade with the removal of UDP."
You can learn more about this issue in the related Microsoft Support article KB2009942.
[tags]udp,outollo 2010,outlook 2003,user datagram protocol[/tags]