Exchange (v2)
Overview
The "Exchange (NEW)" connector is based on a driver from https://www.cdata.com/. Helpful documentation for using the "Exchange (NEW)" connector can be found here: http://cdn.cdata.com/help/CEC/ado/pg_alltables.htm.
Origin
Web Service URL
If you are using Office 365 for your Exchange server, then your Web Service URL is https://mail.office365.com/ews/exchange.asmx. If you are hosting Exchange yourself or using another cloud provider, then your URL will look slightly different but will still likely end with exhcange.asmx.
Additional Connection String Parameters
I'm unsure what all can go in this field, but if you need the Body of emails, and possibly other entities, you will want to put "Include Content=true;" into this field.
SQL Selection Statement
Use the Query Builder... hyperlink on the right to build your initial queries. Check out the CData documentation select page for more information about writing queries, http://cdn.cdata.com/help/CEC/ado/pg_select.htm.