

The solution is to get open source into schools early. Idk how tech education is across the EU, but here in the US kids are usually introduced to computers as early as elementary school (but I think today they might be using ipads or chromebooks instead). In my highschool, we were required to get Microsoft office certification before we’d even be allowed to graduate, which pissed me off even back then.
You can write a python script that procedurally generates email addresses for a given domain, tries emailing them, and if the server doesn’t return an error saying the account doesn’t exist, add it to the database.
It may take a couple of centuries/millenia, and you might have to deal with anti spam measures, but you’ll save $165/mo