Thanks to Herwig W. Schauer the Connections Files integration with Verse on-premises is now supported.
URL to the official Technote: http://www-01.ibm.com/support/docview.wss?uid=swg22001288
Take note that the attachment preview and attachment sharing through Connections Files is not supported, this functionality will be introduced in the next release.
Many thanks Herwig!
Recently I had a problem with Verse On-Premises and Connections Files integration. Integration with Connections Profiles was working fine, but uploading an attachment to a new mail and Files application or attaching a file directly from Files App was just not working. After a bit of troubleshooting I opened a PMR.
After a little while I got an information that Verse On-Premises and Connections Files integration is officially not supported. It will be supported in future, it just isn´t supported in the current release.
Shortly after that I managed to solve the problem with the help of Roberto Boccadoro. Check out his post about this issue.
The integration with Connections Files works, you just may not get help from the IBM Support if you run into a serious problem.