Split from this thread.

I am having the same problem. Live mail is downloading my entire inbox from my btinternet.com account over and over. It includes emails I have read and deleted. I now have 10000 emails in my inbox all multiples but with no way to go through and delete the ones I don't wish to keep. 
This is the account I use to run my business and is causing a major headache. I have deleted the account and recreated it and this at least got rid of the duplicates but showed every email as unread. I was working my way through them tidying it up and it downloads the whole lot again, and again and again.

A simple solution to this would be very welcome.