Hello,

We plan to migrate our mail system to office 365 plateform. What we need to know, is how much of client access license (CAL) we need? do we need to purchase as much as emails accounts?

Best regards,

Hi,

This is the forum to discuss questions and feedback for Microsoft Office client. There is not so much about Office 365 license aspect here, I would suggest you to post in the forum of Office 365 Community, where you can get more experienced responses:

http://community.office365.com/en-us/f/default.aspx

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

Regards,

Ethan Hua
TechNet Community Support

Hi,

if you plan to migrate your mail System to Office 365, you need only to purchase Office 365 subscription for each user without to purchase any additional Exchange Server CAL.

thanks

diramoh