Hi, Judith. I simply clicked on "Delete all from..." under the latest message from that sender (31 messages) and immediately I was informed that 1001 messages had been deleted. Sounds like pretty incompetent design on the part of Microsoft. And to top it all, even Microsoft's own address when I wanted to reply is marked as "User Unknown"!!!!!!!!!
    One might have thought that some straightforward method could be devised so that Microsoft could communicate with its users and that they could actually be in a position to respond easily.