I've been using Basic Authentication for ActiveSync and OWA without SSL. I have to make sure access from outisde is Secure, so need to install SSL. Without purchasing SSL certificate from Networksolution of GoDaddy, is there a way to make it work? OWA and activesync is just for our employees, so I don't think it's necessary to purchase yearly subscribed certificate.
There are users using OWA from outisde, iPhone, HTC.