We supported many nets, including ACSnet:

uucp!research!ches
bitnet!templevm!rdk
csnet!<host>!<user>
acsnet!<host>!<user>

I didn’t remember the exact name of the net, but we delivered to it.

> On Nov 30, 2018, at 5:58 PM, Dave Horsfall <dave@horsfall.org> wrote:
> 
> Err, why the query after ACSnet?