A client of mine is at a conference, and someone there spoke to him about something he called "Distribution list mirroring" - something to the effect of automatically copying emails up to a SharePoint discussion thread. That way, people can subscribe to a discussion list or visit it on their own without having to be in a mail group and receive all of the emails. They could even set up feeds or alerts if they want. He wasn't clear on where such a feature would be turned on/configured … from Outlook or SP or Exchange.
Does anyone know what he could be talking about?