My laptop which is a Toshiba Satellite SB55t-B5282 was originally formatted with Windows 8.1 and updated in the last month to Windows 10. The Mail App problem began immediately after the update to Windows 10. As reported by others, there was no issues with the Mail App when my laptop was operating on Windows 8.1. New emails load without a problem and can be viewed, responded to, moved and deleted. My problem is that the Windows Mail App will not "push" back any deleted or moved emails which means the next time I view Comcast email using either a browser on my laptop connected to the Xfinity (Comcast) webpage or Xfinity Connect on my Samsung S4 cell phone the messages that were deleted or moved still appear in the inbox. If you close the Windows 10 Mail App and reopen it, even resyncing the account, the messages are still showing as deleted or moved. One additional bit of information that may help. Once, when I accessed the Comcast account settings on the Windows 10 Mail App, the "Change mailbox settings" link was grayed out (disabled). I had not choice but to reenter the password and save the new password which gave me access to the account settings and one time only, "pushed" pack the emails that were deleted or moved. It then immediately stopped working again. I'm hoping someone may have had a similar problem and can pass along any possible solutions.
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