How to find/configure/setup Windows 8 SMTP Server

The Microsoft SMTP/e-mail system is called Microsoft Exchange, and requires a separate licence to be purchased. If you have purchased the licence, there are download and installation instructions on the card your CoA is stuck to.

IIS (Internet Information Services) is the Microsoft web/HTTP server that comes bundled with most server versions of Windows, and has nothing to do with SMTP (though it is required for Exchange to function propperly.)

I see there is a step-by-step description of how to enable SMTP in Windows 8 shown here: http://www.neatcomponents.com/enable-SMTP-in-Windows-8

It is clearly part of some support documentation for the neatComponents web development platform but it seems to answer your question pretty directly.

They are drawing a distinction between SMTP service and server, though. HTH