In Cloudmore Exchange v2016 all deleted items are stored for 30 days in the recoverable items folder, even the hard-deleted items, i.e. the items deleted with Shift+Delete.
Restore deleted items from OWA (Outlook Web App)
Log in to OWA
Go to the recycle bin and select Recover Deleted Items.
Right click on the item you want to restore and select Recover
Then select the folder you want to restore the item to.
NOTE! If you select to purge an item in the recoverable items folder only Cloudmore administrators will be able to restore the item.
Restore deleted items from Outlook 2010/2016 (Windows)
The above procedure can also be done in the Outlook Windows client.
Selecting the recycle bin/Deleted Items.
Select Folder in the ribbon menu.
In the folder menu then press Recover Deleted Items.
Restore deleted items from Outlook 2011 for Mac (XOS)
1. Open up Microsoft Outlook 2011
2. Click on the Deleted Items folder. (If you can't see the list of folders, select Folder List under the View menu.)
3. Look to see of the deleted e-mail is listed in the Deleted items folder. If it is then simply copy the e-mail from the Deleted items folder to your destination folder.
4. If you could not find your e-mail in your Deleted Items folder then you will need to login to Outlook Web App to recover it.
Please follow the instruction above Restore deleted items from OWA (Outlook Web App).