samba4: machine and user accounts

[Mike Wilkinson]

Andrew Bartlett wrote:
> Do you need exchange attributes, or exchange working against Samba4?
>
> There is rather a large difference between the two, but on a positive
> note, the folks at PostPath are working on allowing schema modification,
> so their exchange replacement (and therefore in future, things like an
> OpenChange server) can add schema at runtime. 
>   
Just the attributes is fine, the exchange server will be no more.

In reality, it's just the list of email addresses and the ability to 
hide from exchange address lists that we need, but I guess it's all or 
nothing pretty much.