Eliot Lear wrote: > > And, all of this can be automated. > > > > Cheers, > > Ed Gerck > > Really?! > > How does my credit card company's billing system know which harris.com > to transmit my bill to? What unique attributes does it use to choose > between the two domains? Eliot, that's easy. Your credit card company has a previous relationship with you and knows which harris.com to transmit to. Possibly, to the harris.com defined at your root. In pretty much the same way, btw, that the credit card company can disambiguate between you and any other Eliot Lear. Cheers, Ed Gerck