Update 7/14/11: When contacting Microsoft Customer Support to obtain the Interim Update, you can reference KB 2581545 (please note that the article will be available at a later date on support.micr...
Updated Jul 01, 2019
Version 2.0
Blog Post
Just finished a migration project (ex2003->ex2010) at one of our customers. The setup of Exchange 2010 SP1 (DAG, CAS-Array etc.) was carried out with integration of RU4 (update-foler). I tested moving folders with content between mailbox and PST and vice versa when I heard of this issue. Everything worked as expected, no data was lost. All users use Outlook 2010 in online mode. So what is the recommendation? Leave everything as it is or talk to the customer (I think he will be "pleased" to hear this btw.) and remove RU4?
In our own company's Exchange 2010 installation we have this issue with moving folders, so I'm removing RU4 currently. A colleage from the purchase department already lost data, so we need to recover this today. Well, great job.....again. Hope that RU5 will be thoroughly tested before getting released. Thanks!