AOL email can only be recovered for 24 hours after you delete it with the exception of email deleted from Spam folder which is erased immediately and unrecoverable.
The recovered email will move to the New tab in your online mailbox.
To recover the email follow this steps:
1. Click the Mail menu and then Recently Deleted Mail.
2. Click the e-mail you want to recover.
3. Click Restore or Keep As New button.