Port 0

[JJoe]

(Mar. 19, 2020 03:36 PM)Anno Domini Wrote:  as far as I can tell, Proxomitron is not trying to connect out to an IP address.

I think the Proxomitron is requesting the ability to use a local port. Kerio sees the request before the port number is assigned and reports "127.0.0.1, port 0".
This should be ok.

(Mar. 19, 2020 03:36 PM)Anno Domini Wrote:  I'll close out by noting that prior to me switching over to filtering SSL through Proxomitron, Proxomitron never requested outbound access to port 0,

This could be related to Reborn's local https server but I can't say for sure.
You may want to add the https server's port number, 8443, to Kerio.

(Mar. 19, 2020 03:36 PM)Anno Domini Wrote:  I don't understand how the loopback rule works

I don't know enough about Kerio to be specific but your solution makes sense.

Thanks for the post