Unable to get the requested security access token because Authz context handle for client context {0} is null or invalid.
Unable to find managed folder '{0}' in mailbox '{1}'. An error occurred when trying to retrieve the newly created folder ...
Unable to find the mailbox specified. Close the dialog and try to find the mailbox again, making sure that only one name ...
Unable to forward the message because no directory server was available. Please try again later or contact your system administrator. ...
Unable to generate local delivery information for %1 for the Microsoft Exchange Administrator tracking log in message %2. ...
Unable to get the requested security access token because Authz context handle for client context {0} is null or invalid. ...
Unable to identify user '{0}'. If you are not running on an Exchange Mailbox server, specify a value for the Identity parameter. ...
Unable to initialize the Microsoft Exchange Information Store service because the clocks on the client and on the server ...
Unable to install a {0} clustered mailbox server. Cluster continuous replication cannot be combined with a single copy cluster. ...
Unable to link the folder '{0}' of default folder type '{1}' to the managed folder mailbox policy. Only one folder of a given ...