Hi Jackie,
Thank you for posting your query in Microsoft Community.
I’m sorry to know that you have lost emails after Computer crashed. I apologize for the inconvenience caused to you and I will be happy to assist you.
Please provide us the following information, to assist you further.
- How do you access your email account? Is it by Microsoft Office Outlook or Outlook.com web browser or Outlook App or Windows Live Mail?
Please reply with the above information and we would be glad to assist you further.
Thank you.