We're currently running Microsoft's Small Business Server 2003. Most of our users are remote and only log in a few times a day for email and some data entry via a website.
We're using Exchange, SQL, and IIS.
I'd like to install a dedicated web server running Linux. Additionally, I'd like to allow this machine to be a backup email and possibly data server when the main server is taken down (for rebooting).
I know the web server piece is possible, but the email/data, is that possible? Any good resources to check out? Has anyone else done anything similar? (I promise I've searched but to no avail).