So you have deleted important mails and pressed "F9" too? No way to get it back? Think again!
Note: This has to be done in advance. Better to do it on all the mailboxes or databases during creation.
First, in the last tab of the database properties, click on "Allow soft deletions" and set "$Undelete Expire Time" to 48 for 2 days.
Then, create a view in the database called "deleted" and type "Shared, contains deleted items".
That's it. Now your deleted mails will show up here for 48hrs.
You can open them and forward to yourself.