It doesnt for me… I set everything up
Made the file, set permissions (owner www-data, 0644)
All system services running
http://s3.postimg.org/grlt8dear/Capture.png
http://s3.postimg.org/d99tbzder/Capture2.png
http://s3.postimg.org/e02jhrfs3/Capture3.png
I dont want to mess around too much, but would it be possible to delete roundcube? If that is possible i can upload my own index.html which redirects to the Rainloop installation on my NAS
(like I did with http://Hoeky.nl/webmail/