Deleted E-Mails from Outlook Express?

I just inadvertently commit a mistake!
In fact, I just empty my deleted items box, and I absolutely want to retrieve all the messages.
How to achieve
Thank you!

This can perhaps help you: Power Email Recovery for Outlook Express - Free software downloads

Well the short answer is you can't. Now there are some exceptions to this. You open up your emails and read them and delete them as you read them. Then you discover that you accidentally deleted an email that was important. If you have your Outlook Express set up to automatically delete emails when you close Outlook Express and you haven't closed Outlook Express then all you need to do is go into your deleted emails and retrieve the email you want.
for more knowledge see here : How can I Recover Deleted E-Mails from Outlook