Instead of deleting the aged mail from the server, it deletes all of the mail. Until this problem is fixed, there is a simple workaround: users can uncheck the option to delete mail after a period of days, while leaving the "leave on server' setting checked.
This will leave all email on the server for a few weeks, until the problem is fixed.
(2) Remove your Outlook mail site cookies (save any pending work first).
While viewing a page on the site, try either: If that makes no difference, could you test in Firefox's Safe Mode?
From Microsoft: In a few weeks, we will be making some changes to our email services that might impact your @outlook.com, @hotmail, @live, or @msn email account.Those changes will prevent your email from being delivered to the Windows Live Mail 2012 application you use.In order to continue using Windows Live Mail 2012 to send and receive email for your account, you need to install the latest update published here.Microsoft goes on to recommend that users on Windows 8, 8.1, and 10 go ahead and make the switch to the built-in Mail app on each OS.And honestly, that's not a bad idea considering support for Windows Live Mail 2012 is most likely waning.