'Hi guys.
We are doing a test with 3rd party SMTP relay host. We would like to use this host also for inbound traffic to Exchange server.
Currently we have Exchange EDGE in our environment.
Is it enough to change public MX record to point to this new 3rd party SMTP relay host for inbound mail traffic, or do you need to remove edge subscription before SMTP relay host can handle inbound traffic from internet to Exchange server in LAN?
With best regards
bostjanc