Comment Re:How long does email have left at this point? (Score 1) 17
Indeed. While I only run my own email servers (along with web and DNS), it is not even that hard if you are competent. I do it to stay atop of the respective security and system administration questions, as I mostly teach IT security these days. I think you should be able to do most things you teach yourself.
As to the problems you mention:
Not assured delivery is something you always have. No other service is better, including physical mail. But email offers automatic notification of reception. Sure, you want to limit that in order to prevent reflector attacks, but it can be made to work. And then this works pretty well.
No authentication is solved. PGP/GnuPG does it. Integrations are available. I have even seen one integrated into Outlook used in a major Bank. Entirely usable for non-experts. Less comfortable for individuals, but still doable. At this time, the pain is just not large enough. The tech is there, but authentication is never free. Yes, the web-of trust remains as a limit, but this bank just had some people doing it for the partners and customers they cared about. And seriously, if somebody that I have never heard about sends me email, they can just send me authenticated spam, in doubt via hacked accounts.
I think Email is just going to stay around with smaller and larger service providers and organizations large enough having their own people (like you) caring for it. Before, with physical mail, you also had people delivering it internally or externally. It is really not too much to ask to have a competent email admin somewhere.