NethServer Version: your_version
I have a strange problem with Nethserver 7.0 + SOGo + Outlook 2013/2016.
On client configured in activesync, everything works perfectly except that it is not possible to create subfolders in the "sent mail". Just trying to create an outlook informs me that it is not possible as it is not allowed with this module in activesync. At the server-side log I do not see anything special.