Recover Deleted Items from Exchange 2013 | Recover Deleted Items from Outlook2013 | Recover Deleted Items from Outlook 2016
DELETE - deletes the messages from the folder. Moves the messages into the DELETED-ITEMS folder (or the TRASH folder).
RETENTION - the time that you can recover items even if the messages were permanently-deleted (or deleted from the DELETED-ITEMS folder).
Exchange 2013 will have a RETENTION time for permanently-deleted messages. This setting is on the MAILBOX-DATABASE and not on the MAILBOX or individual account.
To see the settings, first find all the MAILBOX-DATABASEs names and their retention time:
-get-mailboxdatabase |select Name,DeletedItemRetention
It will spit out something like:
Mailbox A 14.00:00:00
Mailbox B 14.00:00:00
Mailbox C 14.00:00:00
Great! You know that you have 14 days to retrieve something that was deleted.
If you need to set recovery on a MAILBOX-DATABASE to say 30 days or if a retention is not set and you need to set it:
set-mailboxdatase "mailbox b" -DeletedItemRetention 30.00:00:00
RECOVER IN OUTLOOK 2013 | RECOVERY IN OUTLOOK 2016
-click DELETED-ITEMS (on the left-hand side).
-click RECOVER-DELETED-ITEMS-FROM-SERVER (at the top).
You should see a list of the messages from the last 2 weeks.
-control-click to select the messages you want.
-click OK to restore them.
It should put them back into the folder where they went missing.
RECOVER IN EXCHANGE 2016
If that's too much trouble for the person, then you can do it on their behalf in the EMS.
This will put all the recovery items in the user's mailbox in a recovery-folder called 'foo.user.recovery':
Search-Mailbox foo.user -SearchDumpsterOnly -TargetMailbox foo.user -TargetFolder foo.user.recovery -LogLevel Full
And if you really want to search through the recovery items and restore them:
Search-Mailbox foo.user -SearchQuery "sent: '04/10/17' AND from: 'foo.sender'" -TargetMailbox foo.user -TargetFolder "foo.user.recovery" -LogLevel Full