From several conversations with partners who use Exchange 2010 in conjunction with Outlook 2010, one error kept coming to light:
07:56:27 Übermittlung an Server „EXSRV01.frankysweb.local“
07:56:27 Error synchronizing some deletions.
07:56:27 [0-130]
07:56:27 1 item(s) has/have been deleted from the online folder.
This error is also discussed in the Office 2010 forum, the last post is from December 2010:
The error occurs sporadically, at least in my recreated environment. I cannot offer a solution for this yet. However, I cannot detect any impairment, the synchronization seems to work perfectly. I will investigate the problem in more detail over the next few days and post the results here and in the thread mentioned above.
Update 02.03.2011:
So far I have not been able to determine the exact reason for the error, so far everything looks like a bug in Outlook 2010. The error could not be reproduced with Outlook 2007. Via the registry there is the possibility to disable warning messages about synchronization errors in Outlook 2010, this does not fix the error, but at least worried users are not calling all the time J
Start Regedit and create a new REG-DWORD (32bit):
HKEY_CURRENT_USER\ Software\Microsoft\Office\14.0\Outlook\Options
EnableConflictLogging Value: 0
This setting switches off the notification for synchronization errors completely. The default setting is 2.
0 = Deactivate logging
1 = Log all errors
2 = Only log critical errors