Calendar sync fails with an error such as the following:
06.10.2010 11:06:09 CSession::Logon TraceMsg 4800 Logging on to the mailbox '/o=ORGNAME/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Admin_Mailbox_Name'(Server: 'SERVER', user: 'domain\service_account').
06.10.2010 11:06:36 CAeAddrBookImpl::SetSearchPath Warning -2147467259 The operation failed. - MAPI_E_CALL_FAILED (Microsoft Exchange Address Book) Low level error: 0x0 File: 'aeaddrbook.cpp' Line: '65'
Public folder distribution of the Outlook Address Book is disabled within Exchange. It is enabled during a default installation.
This can affect Exchange 2007 or 2010.
Select the "Enable public folder distribution" check-box on the Outlook Address Book properties within Exchange.