I have a client who has two SME Server boxes (v5.6), with mail and web served from the server-only box behind the server-gateway machine. This has been working well for over two years.
I've now installed Damien Curtain's secure email contrib on the mail server, and, as expected, wasn't able to connect from the outside as the gateway box would have the appropriate ports diabled. I therefore installed Darrell May's portforwarding contrib and set it up to forward ports 465 and 993 to the internal box. However, I still can't talk to it (I also added the UDP ports in case they were required, but this made no difference).
Have I got the wrong end of the stick, or are other ports also required to be opened?
Thanks,