New IP and now Exchange can't receive external mail.
I've been changing server IPs etc as i was told to switch to a new IP scope.
I changed the cluster IPs using the resources in the Cluster Admin tool.
After some problems yesterday where the resources were going onand offline. Something to do with IsAlive service. I changed the protocols IP addresses within Exchange Service Manager.
Now i can send and receive internal mail. I can send mail to external addresses, but no one can receive external email.
I've never done anything with Exchange, so when i've been looking at other threads and other websites, nothing seems to have matched up.
Is there another setting somewhere that's not letting external mail through.
I think there are no queues. However, i was probably looking in the wrong place!
Any help appreciated.
Thanks in advance.