All of my SENT emails that I sent from Jan 11, 2015 through Jan 19, 2015 are missing. They were sent primarily from my Windows 7 computer. Here is what I have done to search for them:
1. Looked through all of my sent emails, deleted emails, all folders both on the web (Outlook.com) and Windows Live Mail.
2. Searched entire computer.
3. Searched Recycle bin.
4. Searched iphone email accounts.
All of my other emails from 2006 to present are there. Just this one week is missing. Never had anything like this happen before.