Is it me or it's realy not easy to get information about Microsoft Product Licensing [duplicate]

Possible Duplicate:
Can you help me with my software licensing question?

How can we get the real information about the licensing on Microsoft product.

I try to get the number of mailbox i can create with a license of exchange, and il could not get the information anywhere.

I want buy this license, but no information about how many mailbox i can create with this license.

The question is what kind of licence i need to buy if i want a unlimited mailbox license ?

I got actually over 1200 mailbox, in mdeamon software, the mailbox number always grow ... so i need a licence for my scenario.

Someone can help me please ?

Solution 1:

Exchange is not licensed by the mailbox (which is likely why it's difficult to find that number) Exchange is licensed by CAL. There are 2 types standard and enterprise. Enterprise is only required if you are doing Unified Messaging and advanced compliance. (not by the server type as mentioned in another post). MS Licensing is sometimes complicatied but every product has a licensing page (usually under How to buy). For Exchange see Exchange Server 2007 Licensing Frequently Asked Questions

Solution 2:

Ask your reseller? Ask Microsoft?

When you buy Exchange, it may or may not come with CALs, Client Access Licenses. The number of CALs you bought is probably directly related to the number of mailboxes you are licensed to create. There may be details relating to per-user or per-device, so you need to know what you bought and how your environment is configured. /Edit - someone posted the link to the '07 CAL rules, which was very helpful. There is no per-user or per-device (I think I was confusing it with Windows Server CALs) - it's just Standard or Enterprise. You just need 1 (probably standard) CAL per user.