If you are experiencing issues setting up your hosted exchange mailbox (Essentials and Higher) with us on the Office 365/2016 version of outlook you will need to carry out these steps below, a recent update to Office has stopped autodiscovery working in the normal way and now if you have used the same email address you use with your hosted exchange mailbox on Office 365 your account will fail to setup
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\AutoDiscover] "ExcludeHttpsRootDomain"=dword:00000001 "ExcludeExplicitO365Endpoint"=dword:00000001 [HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\office\16.0\outlook\autodiscover] "ExcludeExplicitO365Endpoint"=dword:00000001
Last Updated: 13 November, 2018
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