You can use the following code saved into a file with a .asp extension to test CDOSYS functionality; CDOSYS is a built-in component in ASP, so utilizing it from your ASP code takes no additional effort on your part.
Below is a sample script you can copy and paste in order to test CDOSYS functionality:
Set MyMail = CreateObject("CDO.Message")
MyMail.From = "You@YourDomain.com"
MyMail.To = "YouAgain@YourOtherAddress.com"...