Just installed Outlook 2010 using Exchange 2003. I have conversations turned on but any emails in sent items are not being included in the thread in my inbox. I came across something that said cached mode has to be enabled in Outlook for this to work. Is this true? I will be moving to Exchange 2010 in the near future, will this correct it instead of having to turn on cached mode?
You dont require cached mode for that functionality. Conversation views work fine in Outlook 2010 with an Exchange 2003 backend. Remember though you can modify the conversation view to apply to all or specific folders. What version of Outlook 2010 are you running?