Since changing over to Exchange 2007, I am unable to set the proper configuration to allow us to receive emails from our PBX. The only setting on the PBX are the actual IP of the PBX and the smtp domain name. I now need to allow it to send emails via the receive connector in Exch 2007. I have set the permission group to Anonymus and with Authentication with TLS ONLY. Anybody know of the proper settings for this connector? I've tried many many combos with no luck.