Already for some time, we are not able to activate Auto Capture and Email Engagement in our Dynamics 365 instances.
The symptoms are that we do not have neither Auto Capture nor Email Engagement options in the analytical setting area. We only see the the relationship insights.
So I have raised this issue with Microsoft Support. It turns out that it is a global issue and Microsoft is working on the fix.
It is somehow connected with the territory (crm4) and with the licences that we are using Dynamics 365 for Sales Enterprise Edition.
Update: The fix has been deployed to our environments. So I hope to yours as well.