> how do you explain to a non-technical user that their data has been deleted on the server, but that their client still has a cached copy that they might want to try to salvage somehow?
How about: "This message has been deleted from the mail server, but Outlook still has it in its temporary cache on this device. You can copy the message contents, or discard it from the cache, at which point it will be permanently deleted."
How about: "This message has been deleted from the mail server, but Outlook still has it in its temporary cache on this device. You can copy the message contents, or discard it from the cache, at which point it will be permanently deleted."