Can, yes.
Should, maybe.
Enjoy doing, unlikely.
And for sure your home isp has all the email ports blocked upstream.
With all that being said, to call SMTP dead is wildly insane. I do figure it will die someday though. Probably around the same time of universal IPV6 adoption during the year of the linux desktop.
This is such a tragedy. And magnetic tape from that era may or may not hold up long enough before someone finally gets around to having them digitized.