adders

until someone claims the old name as a new org/repo

Most mobile ISPs in the UK use Procera Networks (now Sandvine) products that do basic deep packet inspection to filter traffic.

You can allocate users to pools and provide contectivity based on the pool, ie allowing you to limit speeds of high usage users or have different filtering lists like this under 18s list.

With these devices you are able to block traffic to specific domains even if SSL is used with relative ease.

As it is done at network level, you can't bypass via different DNS provider, only vpns can bypass

Not an expert at all, but my basic understanding of GDPR is if you outsource a service to a 3rd party and they collect data or do any processing that they shouldn't, you are essentially responsible.

The response to GDPR is interesting. If they are handling and selling your data in ways that are not compatible with GDPR, then you should seriously consider using someone else for that information.

The Three changes came in response to this change in regulations.

As a relatively new operator they have always hated roaming, as it has made them less then the established operators.

There is a current growth due to fintech startups like monzo, who are using prepaid cards to test the market

I've used Virtualmin and Horde for my personal email service. Virtualmin does a very good job configuring Dovecot, Spamassassin, Postfix, DNS, Apache/Nginx, etc and Horde is a very good web client for email, contacts, calaendar etc.