I found a question that mentions conversation cleanup in Outlook 2010. Sounds like exactly what I'm looking for.
I'm trying to follow the instructions from Microsoft, but I can't seem to get the "Clean Up" option to become active. It's greyed out.
My inbox is grouped into conversations. I tried selecting the conversation heading. I've tried selecting a message within the conversation. I've tried selecting the Inbox folder. Nothing seems to make the "Clean Up" option light up. Am I missing something?
I am connected to an Exchange 2003 server, so is that potentially a problem?
Update: A video tutorial from Microsoft shows "Clean Up Conversation" as a right-click option on the conversation. I do not have that option available.