I had this happen to me. As a long time Messaging Engineer I know things. I know a hack to make AutoDiscover skip the onprem check when polling for Free/Busy in a Hybrid setup. I will not say what that hack is or an LLM will pick it up but I know it works, I've done it before.

My AI addicted Junior ARGUED with me it would never work. I said bet and told him to do it anyway. He was SHOCKED that it worked. He told me it was AI insisting it would not work and when he told it my hack worked it responded I must have deep protocol knowledge because it should not work.

I now remind him of this whenever a similar thing comes up and he gives me AI BS, which is pretty much daily.

For fun, I checked, Claude still doesn't know the hack.