http://blogs.technet.com/b/raymond_ris/archive/2012/10/12/exchange-server-2007-integration-with-project-server-2010.aspxI've noticed that sometimes Exchange Server 2007 integration doesn't integrate seamless as followed on the following technet article: http://technet.microsoft.com/en-us/library/ee782548.aspx . This could be related to the AD - Exchange Server 2007en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)