Emails popping up back in Inbox after moving them or deleting them

Question

I am using Outlook 2010 and this problem popped up just a couple of days ago.
When I go and delete emails or move some others to my folders,the next time I go to look at my email, all the emails are back in my inbox as unread.
Whatever I had moved to the folders are back in my inbox and not in my folders. This has happened everytime since it began a couple of days ago. My OS is Windows 7 Home

Answer 1

Do you have any rules configured in Outlook?

Are you sure all e-mail messages have been downloaded from the server? Possibly a message with a large attachment remaining?