Italy and other countries implemented and open and parallel mail system for legal documents. While it is still possible to forge emails, it makes it much harder

Italy and other countries implemented and open and parallel mail system for legal documents. While it is still possible to forge emails, it makes it much harder to do so. https://en.wikipedia.org/wiki/Certified_email https://en.wikipedia.org/wiki/Certified_email In order to open one of those email accounts you need to give full details using Italian digital identity (SPID). It is also possible to forge a SPID, but that's even more complicated. So, to sum up, it's quite an antifragile system. Relatively simple, widely adopted and secure enough.