Hello,

I just set up a new exchange server for my company. everything is working
fine except one thing. I have some devices (a scanner, our erp system, etc)
that can send their own emails. With my old exchange server there was a place
where we had to go to enter the IP addresses of these devices so that the
exchange server would automatically authenticate them. I cannot for the life
of me find that place now. Can somebody please tell me where to look?

Thanks in advance!