I've been tinkering with setting up win2k3 server this weekend just to learn how to do it, i've problably read through 300+ posts getting things to work Nearly everything works at the moment, i have not yet edited the MX-records on my domain so i can only recieve mail at the moment. Anyhow, I have this problem with activeSync on my HTC Hero, if i use the app Roadsync i can sync my stuff just fine, but if i try with the built-in e-mail app, i can autheticate, but after that it says "cannot create account, try again later" Im not using SSL, i've only configured things so that they will acually work. The w2k3 server , AD, DNS, IIS and Exchange server is all on the same computer. I've read somewhere that the HTC heros mailapp dosent support some kind of pin-feature, i havent gotten any wiser about that. if i've left anything essential out feel free to flame me for it