BigBadGuber!, please see: http://technet.microsoft.com/en-us/l.../bb123484.aspx

Exchange allows mail admins to choose a range of options to require, or not, for all connecting devices. Even Windows Phone 7 only supports a subset of the available choices.

If you can find out the list of provisioning features your Exchange server demands of connecting devices, someone may be able to determine whether you'd be able to connect using (the N950's old version of) Harmattan. Otherwise, all we're able to say is: Yes, provisioning is supported in Harmattan. No, we don't know if it will work with your Exchange server.