I migrated our project from .NET Framework to .NET Core 3.0 (C#, WPF) and now I can not use Microsoft.Office.Interop.Outlook anymore, because it is not compatib
Right click Dependencies and click "Add Reference"
Select Microsoft Outlook 16.0 Object Library under the COM tab.
Under Dependencies/COM in your project, select Interop.Microsoft.Office.Interop.Outlook reference, then under "Properties" set "Embed Interop Types" to "Yes"
I also had to uninstall the Microsoft.Office.Interop.Outlook NuGet package because it caused a conflict with the reference in Dependencies/COM.