IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
When Outlook emails deleted by the mistake and also erased from deleted items folder that time those items are recoverable with in retention period (near about 14 days). After that it will permanently removed automatically.
No backup? A little bit difficut for you to solve this problem. Maybe you can go to Windows official website to find the solution. But here I suggest you to check the folder which contains your emails on your computer first.
What's more, after you find that you lost your emails, stop putting new files or receiving new emails 'cause this will make the data overwritten situation. Once this happen, the expert or data recovery software cannot help you to get your mails back.
Select the folder from which you want to recover deleted items and then click Tools menu and select "recover deleted items" option in it. (If this option is missing then contact your exchange administrator. )
Select the items which you want to recover and use Recover Selected Items command on it. For multiple items recovery press CTRL with click.