Hi Everyone!
I have a pfsense box setup with a public IP, I also have a mail server on my LAN network behind the firewall.
I have NAT setup so that all 443 and other mail related ports are redirected to my mail server. So mail traffic hits my firewall and is then redirected to the internal IP of my mail server. This works perfectly. I have mobile phones setup and communicating as well as laptops out of the office.
Now my problem is some upper management connect to our VLAN wireless network (separated from our LAN for security reasons), the VLAN traffic is also managed by pfsense. I have a rule that blocks all traffic from VLAN to LAN and vice versa.
Now I cannot access the exchange server from the VLAN, as soon as we switch from wifi to mobile data, we can connect to exchange and send and receive emails. As soon as we are back on the wifi,...