CALS question. Windoes 2008 + Exchange 2010

Hi,

We are planning a DC upgrade from 2003 SBS to 2008 STD   Sever and exchange 2010.

I am not surehow this works in terms of CALS

My current setup is windows SBS 2003 as a DC.   1 CAL is valid for both  Domain and Exchange mailbox. When i buy CALS for SBS  users can use both the domain services and exchange (OWA too)

What is the difference when you have Server 2008 and Exchange  as  "separate products"  Do  I need to buy 50  Windows CALS and 50 Exchange  2010 CALS?

What if  a lot of peiople only need an outlook web access mailbox and no Windows account?  


Thanks
LVL 2
maxalarieAsked:
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davorinCommented:
You need to buy 50  Windows CALS and 50 Exchange  2010 CALS, because when the user accesses exchange mailbox he/she is authenticated in AD, which use is licensed in Windows server CAL.
You will also need one windows server license and one exchange 2010 server license.
And to add, installing Exchange server on domain controller is not recommended so I suggest you to install additional server as domain controller - you will need additional server license.
License expenses will be much higher than with SBS server, but if you are planning to have 75+ users that is the only option.
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maxalarieAuthor Commented:
Thanks much Davorin.,
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maxalarieAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for maxalarie's comment http:/Q_27523733.html#37388870

for the following reason:

Thanks
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davorinCommented:
You are welcome. But probably you have hoped for different answer.
Here you have official link - look at last paragraph - Prerequisites for Exchange 2010 Client Access Licenses (CALs):
http://www.microsoft.com/exchange/en-us/licensing-exchange-server-email.aspx
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davorinCommented:
I'm posting the objection to closure of this question, because author probably choose his comment as answer by mistake.
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maxalarieAuthor Commented:
Let me check, maybe i made a mistake. Were not you awarded the points?  if you were not, i am sorry,  I will  re-accept the right solution.
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maxalarieAuthor Commented:
Thanks.
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davorinCommented:
No problem. Thank you.
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