Cornerstone Technologies will migrate your mailboxes to Office 365. We will need some access to your site to do this. Once you have purchased the license to move mailboxes for your site one of our engineers and project coordinators will reach out to you. Please make sure to provide all contact details so we can work as efficiently as possible.  This license DOES NOT include a license for your MS O365 mailbox. Thanks again for trusting us with your data!