Replying to a message from: John

I have an Exchange 2016 machine with one NIC, I followed the procedure here:

 

http://www.xeams.com/FirewallSameMachine.htm

 

Users can receive email, but cannot send. 

The xeams.log has many cylic message warnings. 

How can I make it so they can both send and receive via Xeams, and keep Exchange?