Outlook (New) Does not work with our Email Server
More information on why Outlook (new) does not work with our server.
https://answers.microsoft.com/en-us/outlook_com/forum/all/imap-support-for-new-outlook-for-windows/469fd2ef-9d44-42f3-800c-dda6d69e3c9c
“Currently, the new Outlook for Windows does not support other account types like Yahoo!, iCloud, or other account types connecting through POP/IMAP protocols. New Outlook for Windows also does not currently support On-Premises, Hybrid, or Sovereign Exchange deployments.”