I just discovered a new function in Microsoft Outlook 2010 which on its own already makes it worthwhile to upgrade from previous versions. The “un-reply-to-all” button. From the tooltip:
“Ignore conversation (Ctrl-Del)Move current and future messages in the selected conversation to the Deleted Items folder”
Wow. This will come in handy. Blacklisting Email-Threads you once accidentally stumbled into, or you simply don’t care to hear about any longer. Cool.
Screenshot of MS Outlook 2010 Un-Reply-To-All