If IPs are protected information, so how is this handled in E-Mails, on mailing-lists like this and alike?
very simple: all mailing lists are now illegal. As well as all IP routers.
Not at all. (Otherwise all telephony operators would also be illegal). As for the mail headers, its an open point I need to clarify.
I think its useless to continue this techie thread. I'll do my best to get an FAQ done asap backed up by one (or maybe two) lawyers so that all ISPs understand what really changed and if they need to adapt something or not.
Pascal