+ See also http://fex.belwue.de/usecases/foreign.html
+
+Q: What is a F*EX group?
+A: F*EX group is similar to a mailing list, but for files:
+ When a member fexes a file to this list, then all other members will receive it.
+ Any full user can create a F*EX group and add or delete members.
+ See "user config & operation control" → "Manage your subusers and groups"
+
+Q: I am not a user of your site. How can I send a file to a registered user?
+A: See question above: you must ask a regular user to register you as his subuser.
+ You will then get a specific upload URL from him.