Limit to amount of email addressed in Exchange 2010

Does Exchange 2010 and the CALS limit how many emails can be created?
If yes, at what point would new CALS need to be purchased, is it based on the number of CALS?
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ktaczalaCommented:
No, Licensing is just "On your Honor"  If you have 10 CAL's (Domain)  you have 10 licensed Users or devices.  But you can add as e-mails as you'd like.  For instance distribution groups don't count as a used CAL.
Legally you are not supposed to have more users or devices than you are licensed for.
But if you have 10 Device CALS, you could have more than 10 users, because you can only have 10 users logged into the 10 devices at any one time.
CALS are purchased as USER or DEVICE.

I'm not a licensing expert so don't take this as an absolute.

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