How to setup ARM to only scan certain Domain Controllers in my Domain and not all of them?

Because of my my organization structure, the service account used to manage ARM does not have Domain admin permissions however it has elevated privileges, because of this, ARM fails to connect to Domain controllers located outside of our local site, This has caused some alerts within our network security team since they see ARM trying and retrying to connect to those domain controllers without success. They has asked if is possible to setup ARM to see and scan only specified domain controllers by editing the server Host file. 

Will appreciate any answer or Idea you can provide to deal with this?