#Exchange #Exchange2010 The Delegates settings were not saved correctly. Unable to activate send-on-behalf-of list. You do not have sufficient permission to perform this operation on this object.

if you try adding a distrubtion group as a delegate to a user using outlook 2003 and Exchange 2010 you might get this error:

The Delegates settings were not saved correctly. Unable to activate send-on-behalf-of list. You do not have sufficient permission to perform this operation on this object.

to solve this problem add the following registry key:

HKCUSoftwareMircosoftOffice11.0OutlookPreferences.

Dword: IgnoreSOBError value = 1

#Exchange #Exchange2010 New KBs for 13/9/2010

SendAs permissions granted to users in forests trusted by Microsoft Exchange Server are not visible in the Send As Permission Wizard in Exchange Management Console (EMC)

http://support.microsoft.com/default.aspx?scid=kb;en-us;2401524&sd=rss&spid=13965

Active Directory wasn’t prepared using hosting mode.” error message when you install Exchange Server 2010 SP1 from an unattended installation

http://support.microsoft.com/kb/2384868

#Exchange 2007 or SBS 2008 database stopped with error Microsoft Exchange MDB Store has stopped working

you might get this error in SBS 2008 or Exchange 2007 SP1 or SP2:
Microsoft Exchange MDB Store has stopped working
Problem signature:
Problem Event Name: APPCRASH
Application Name: store.exe
Application Version: 8.1.240.5
Application Timestamp: 474279c0
Fault Module Name: EXWRITER.DLL
Fault Module Version: 8.1.240.5
Fault Module Timestamp: 4742791f
Exception Code: c0000005
Exception Offset: 00000000000468ba
OS Version: 6.0.6002.2.2.0.305.9
Locale ID: 2057
Additional Information 1: 34e2
Additional Information 2: 3454105bfc0b075716dc31602387ef8a
Additional Information 3: 6d90
Additional Information 4: c1912ee3b1078fa2042383c7390c02af

Microsoft Exchange MDB Store has stopped working
Problem signature:  Problem Event Name: APPCRASH  Application Name: store.exe  Application Version: 8.1.240.5  Application Timestamp: 474279c0  Fault Module Name: EXWRITER.DLL  Fault Module Version: 8.1.240.5  Fault Module Timestamp: 4742791f  Exception Code: c0000005  Exception Offset: 00000000000468ba  OS Version: 6.0.6002.2.2.0.305.9  Locale ID: 2057  Additional Information 1: 34e2  Additional Information 2: 3454105bfc0b075716dc31602387ef8a  Additional Information 3: 6d90  Additional Information 4: c1912ee3b1078fa2042383c7390c02af

FIX:

Apply Exchange 2007 SP3 then restart the server