i have a sbs 2003 server and outlook web access works well inside the network. i want to be able to use it outside the network. what do i need to open on the firewall. i have read just port 443 but then i came across this microsoft article and got a little confused. haven't heard of having to change anything in the registry to do this.
here is the microsoft article:
any suggestions? i want to then get my mail on my treo windows phone.