Depending on how you define "self-hosting", I may qualify at that.
I've hosted my email on a remote VPS myself. I have not hosted the machine in my apartment.
I used postfix + dovecot + mysql stack, I have to admit it was the hardest thing I've ever configured and I've hosted a lot of services in my life.
In the end I ended up switching to the free service that came with the domain became no matter what I did and how compliant I was to dkim and SMARC and tkip (I'm probably butchering the name here, it's been a long time) outlook accounts kept sending my emails to spam, everything else worked fine, even gmail, but DAMN Microsoft and how much I hate that company managed to fuck over me one final time even after years after I switch to Linux. I tried everything even the form to remove my email from spam.
Tl;Dr hosted email on a vps but couldn't get past outlook spam filters
Now and Then, Here and There, a very heavy anime, I guess it's heaviness is the reason why it never became super popular, but still, I think it still had what it takes to become an anime of cult.
Shiki, also deserves more recognition than what it has.
Kemono no Souja Erin, I didn't finish this one, but the first half is amazing, unless the second half looses quality this one should have been popular too.
Also, it's worth to mention Gunslinger Girl.
All these shows are kinda dark, so maybe that's why they never got the recognition they deserve.