To install the Insightly Sidebar, you must have all of the following:
- An Outlook client that supports add-ins
- Outlook online or Outlook 2013 (and higher) for Windows Desktop or Outlook 2016 for Mac
- An Office 365 business plan subscription that is not provided through a third party, like GoDaddy or Rackspace
If you use Insightly for G Suite and access your Gmail through Outlook, you won't be able to use the Insightly add-in.
Businesses that use Microsoft Exchange Server for email are using Microsoft Exchange accounts. Add-ins like the Sidebar are not built for use with Exchange accounts.
For assistance with Outlook permissions issues during installation, please contact Microsoft Support.