Having recently installed an SBS Server on NT4 SP5, I have declared
in exchange 5.5 the parameters to connect to the SMTP server of my
ISP for a first domain name.

It worked until I tried to declare a second domain name, then the
Internet Messaging Service (Exchange 5.5) crashed on an exception
error when I try to launch it.

I tried to go back, deleting and re-declaring all the parameters
but it changed nothing. It still crashes.

The domain name is well declared by my ISP and fully reachable.

If any idea of what may happen ... I would appreciate.

Note : I cannot deinstall only the Exchange application ... at first
sight SBS doesn't allow anything else than reinstalling all the

HELP .....