We have an Exchange server that is accessible on port 80 and 443 from the outside. When you go to the website using http, you should be redirected to https automatically. It works this was internally.
On the firewall (Cisco ASA 5505), I am allowing traffic from anywhere to the Exchange server on ports 80 and 443 .
The redirection is not working from the outside, however, it does work on the inside.
When I logged the ip address that I was coming from I get:
Teardown TCP connection 638459 for outside:x.y.z.1/9590 to inside:Servername/80 duration 0:00:30 bytes 0 SYN Timeout
This is preventing our users with cell phones to sycnh up properly to the Exchange server.