I am setting up an internal email server for a customer. I can connect to it using telnet to port 25 from my office 99.28.XXX.XXX using the natted public IP address 100.100.XXX.XXX to internal 192.168.10.7
But I cannot connect the other way. I have outbound email stuck in the queue because the email server at 192.168.00.7 cannot make a port 25 connection outbound. When I use telnet from the email server at 192.168.100.7 to connect to my email server at my office at 99.28.XXX.XXX, the connection fails.
I have done this numerous times using the ASA 5506 and never had an issue, but this is my first FPM 1010. Any help would be greatly appreciated.