Does anyone know what this event ID error is related to ? I checked eventid.net but didn't get a satisfactory answer.
Here it is
The user account for <user name> does not exist in the directory or is not enabled for Exchange mail. This mailbox will be removed from mailbox store 'First Storage Group/Mailbox Store (server)' in 21 days.
Eventhough the accounts do exisit in the AD and are valid accounts of users in the domain. Can anyone shed light on this, thanks!