VerifyCategoryRule.ps1

## From Windows PowerShell Cookbook (O'Reilly)
## by Lee Holmes (http://www.leeholmes.com/guide)

Set-StrictMode -Version 3

if($message.Body -match "book")
{
    [Console]::WriteLine("This is a message about the book.")
}
else
{
    [Console]::WriteLine("This is an unknown message.")
}