An updated version of '{5}' is available for server {2}. The updated version is highly recommended as it provides better performance and reliability over previous versions. Download details are provided in Microsoft Knowledge Base article 903081. Installed version of '{5}': {6}.
An unhandled exception occurred while the UM Worker Process (UMWorkerProcess.exe) was stopping. Exception details follow: ...
An unknown managed default folder type for the Active Directory managed folder {0} was found while processing the mailbox ...
An unrecoverable rule synchronization error (%1) has occurred on mailbox database "%4". The mailbox folder is %2. The distinguished ...
An unsupported operator was used in the filter. The logical Or (-or) and logical Not (-not) operators are currently not supported. ...
An updated version of '{5}' is available for server {2}. The updated version is highly recommended as it provides better ...
An updated version of the Windows Management Instrumentation (WMI) driver '{5}' is available for server {2}. Updating to ...
Anonymous Request received from HostAddress:"%1", HostName:"%2". Invalid Autodiscover site configuration. To fix the problem ...
Another administrator is currently moving the mailbox. You must wait for this operation to complete before moving this mailbox ...
Another application has modified the specified Microsoft Exchange database such that any subsequent backups will fail. You ...