Getting the name of responding server(s)

[Stephane Bortzmeyer]

On Tue, Sep 07, 2021 at 12:40:14PM -0700,
 Ronald F. Guilmette <rfg at tristatelogic.com> wrote 
 a message of 36 lines which said:

> >I'm not aware of a tool (free software or not) which does it. Some
> >programming will be required.
> 
> I was afraid of that, but thank you for confirming.

Don't despair, see the other messages in the thread (by Matt Pounsett
and myself).