Re: mail administrator certification example

John Keown wrote:

> All mail servers have routers built into the mail server as an underlying
> method to handle and route email in addition to dns. It is accomplished with
> an or or an exclusive or operation which is a form of division. Therefore
> the address space specified must be in this case by 256 which it is not.
>  
Then don't handle CIDR with XOR.  Handle it with AND.