Can I allow only one IP address to relay on my exchange server?

[jarnold]

I am running a web application on my AS/400 and I have an option for people to send a request if they forgot their password. This is automated to send back their password as long as they give us the proper information. My AS/400 and Mail Server(Exchange 5.5) are on the same LAN and I only want my AS/400 to have the ability to relay e-mail messages. Can I only allow the IP of the AS/400 to relay e-mail messages through my exchange server?

 

[Zelandakh]

check my FAQ in this forum on relaying. it details the screen you need. in your case use the IP address of your AS400 box rather than what I've said.

 

[jarnold]

Thank you for putting me in the right direction. I have able to fix my problem.