I am trying to setup a M365 outbound connector with the corresponded one on the on-prem exchange 2010 inbound. I am using a public IP (not associated to a CA) but I am receiveing erros evaluating it.
I read some documents on that argument and it seems is needed (not confirmed) to use a TLS securty option associated with a pubblic certificate to make it works.
Do I really need - mandatory- use a public certificate if I want to test a connector?
What is the best way to test a connector then?
Thanks





