Cameras of topic are Dahua N44CB33. Based on Cliff notes and discussion on the forum, I made a firewall rule to block all LAN traffic. Logically that also prevents the cameras from sending motion detection emails. When I turn off the firewall rule (presently showing as Priority 2) email notifications work as expected. So, to try to fix it, I made another firewall rule (showing as Priority 1) that I thought would allow SMTP on port 465 as it is configured on/in each camera. It is set up to (in theory) allow any LAN traffic on port 465 yet still don't get the email notices and testing with the Test Email button in the camera GUI it says send failed. (the bottom three rules are defaults and cannot be changed, far as I can tell) What am I doing wrong?