This item Exchange Server 2016 Enterprise Single User CAL is fulfilled through the MICROSOFT OPEN LICENSE PROGRAM (OLP)
Microsoft's Open License Program is called "Open", because it is open for anyone and everyone, as there are no restrictions on purchasing this product. You can be an individual, a small business, a large corporation, a non-profit, or even a government entity. Simply, there are no restrictions.
This item is Client Access License (CAL) only. It does not include any of the server software, but these are the base forever license of these CALs, you will never have to repurchase or renew unless you change the server model year. It is for adding Clients to a new network and/or expanding the number of clients to your existing network. You may purchase this license with the base server license for a new installation, or you can purchase this by itself, if you already have the base server license and you are simply expanding your network.
IMPORTANT! Whatever information is in the "Shipping Fields" upon checkout will be the fields used for your license registration with Microsoft. If you are an IT professional and you are purchasing for a client of yours, please be sure to put your client's information in the shipping fields. ...and don't worry - we never contact our customer's clients for any reason. It is just for regisration purposes.
Once your order is placed with us, we will then register your order directly with Microsoft. Your license will be released to you in the form of an "Open License Order Confirmation", which is your official proof of ownership. This document includes your license authorization and agreement numbers, and a link to Microsoft's website where you can manage your license and/or download software and/or obtain your product keys for installation/activation.
This item is the perpetual license of the software, so you will never have to repurchase or renew for as long as you utilize this model year. Please be aware that all licensing defaults as a download from Microsoft's website after your license is released. But, you can have media shipped to you, if you want. All media from licensing is a direct ship from Microsoft and can be ordered after your license is released.