Exchange 2007 CALs

I am planning to deploy a new server running MS windows server 2008 and MS exchange server 2007.
I will require 15 - 20 access licenses to the exchange server for its use.
However this machine will not be used for file access so I am unsure regarding access licenses to the windows server 2008 software.

I think that I will be required to purchase an access license for the amount of users to the actual system as the exchange server. =
15 - 20 Win server 2008 CALs
15 - 20 Exchange 2007 CALs

Can someone please advise me or confirm my thoughts

Thanks in advance
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dexterhomeAsked:
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tigermattCommented:

Any user who authenticates to and uses the resources of your 2008 Server will need a CAL. Since they will be using the resources of the Exchange Server, you will need CALs for the Operating System, and then CALs for every user accessing Exchange.

One point to remember is that Exchange CALs are not per mailbox, but per user / device accessing the Exchange Server. This means you don't need 1 CAL for every mailbox if 1 user has 3 mailboxes, for example.

-tigermatt
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dexterhomeAuthor Commented:
I thought this was the case, but just wanted confirmation.
Thanks
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