NethServer Version: 7 final
Module: nextcloud, pop3 connector
So here's a couple of items of annoyance.
After full config and data restore the Nextcloud sync logs don't match and the clients initiate a full overwrite of the directory, in this test case, 3 clients, 1200 files each, 500mb.
As mentioned previously, if using pop3 connector, the module will download everything on the mail server right along with all the emails that were restored, ending up with a store full of duplicates.