That's all well and good until said ISP's upstream servers go
slow/break/take an age to deliver a message you can deliver from your own
host immediately. [It also doesn't scale particularly well]
At 5:35 PM -0500 2002/08/21, Peter E. Fry wrote:
Relay through your upstream (hierarchical approach)? i.e. Register
your server(s) with your provider, who is presumably trusted (registered
with the global system).
This is the approach I recommend, and have recommended for years.