Upstream disabled IMAP and POP3 by default in this version. If you want your users to have IMAP access be sure to enable this again in the server.cfg.
The Open Source Edition of the Zarafa Collaboration Platform 7.0.1 is the first version which ships zarafa-archiver to decrease the size of a production Zarafa server by copying or moving the messages to a secondary Zarafa server. Clients will still be able to open the message from the secondary Zarafa server directly.
Fix #7900: Comment in server.cfg about disabled_features is wrong "Default all features are enabled".
Fix #7935: Pop3 is not a default disabled feature.
Fix #7934: man page zarafa-server.cfg has an empty default for disabled_features.
Fix #7930: Stores not created in German when you set userscript locale to de_DE.UTF-8 in /etc/default/zarafa.