Email-Enabled Lists in SharePoint
There is growing interest in using email-enabled lists in SharePoint...not a lot of enterprise examples yet and so not a lot of best practices. If you are considering this, check out the following:
Email Enabled Lists and Inbound Email
E-Mail Records Retention in SharePoint Server 2007
How to configure Email Enabled Lists in Moss2007 RTM using Exchange 2003
How to configure Email Enabled Lists in Moss2007 RTM using Exchange 2007
Configure in-coming email settings (Office SharePoint Server)
</steve>