add different between outlook 2016 from office365 and not office365

docs/client-outlook.md

@@ -1,12 +1,12 @@
 <div class="client_outlookEAS_enabled" markdown="1">
 
-## Outlook 2016 on Windows
+## Outlook 2016 (from Office365) on Windows
 
 <div class="client_variables_unavailable" markdown="1">
   This is only applicable if your server administrator has not disabled EAS for Outlook. If it is disabled, please follow the guide for Outlook 2007 instead.
 </div>
 
-Outlook 2016 has an [issue with autodiscover](https://github.com/mailcow/mailcow-dockerized/issues/615). For EAS you must use the old Assistent:
+Outlook 2016 has an [issue with autodiscover](https://github.com/mailcow/mailcow-dockerized/issues/615). Only Outlook 2016 from Office365 is affected. If you installed Outlook 2016 from another source, please follow the guide for Outlook 2013 or higher. For EAS you must use the old Assistent:
 
 1. Launch `C:\Program Files (x86)\Microsoft Office\root\Office16\OLCFG.EXE`
 2. If this is the first time you launched Outlook, it asks you to add a new profile. After that the account setup can be started.
@@ -15,7 +15,7 @@ Outlook 2016 has an [issue with autodiscover](https://github.com/mailcow/mailcow
 6. Click the *Allow* button.
 7. Click *Finish*.
 
-## Outlook 2013 on Windows
+## Outlook 2013 or higher on Windows
 
 <div class="client_variables_unavailable" markdown="1">
   This is only applicable if your server administrator has not disabled EAS for Outlook. If it is disabled, please follow the guide for Outlook 2007 instead.