The following directions will only work for OC Cloud9 customers. This setup is Windows desktops using Outlook 2010 SP3, 2013 and 2016.
You may also check your email using a browser by navigating to https://outlook.occloud9.com/owa
Mail Setup for Mac Mail:
- Open Mac Mail and choose Exchange
- Enter your Name, Email address and Password. Then click Sign In
- If autodiscover fails you need to fill in the Internal and External URLs. They are the same: https://outlook.occloud9.com/ews/exchange.asmx
- Select what you would like to sync and click Done.
The screenshots shown are from Mac Mail on macOS Sierra