Am unable to send email

I was able to get email service working. Changing the VPN settings allowed the IoT device to connect to remote smtp services. Evidently, even though we are not using VPN, the Out of Band policies are still in effect? I was only able to get smtp connections by setting LAN Host Generated
Outgoing Traffic to “Allowed”.

I already have port forwarding rules in place for the specific inbound ports I need to connect to the IoT device. Should I then go ahead and set the Out of Band Policies for Incoming Traffic to “Allowed” as well?