Hmm it's a difficult question.
I also wonder if actually using a normal mail provider is SaaSS (in contrast
to running your own).
I mean, the job your mail provider is doing could be done on your own
computer, you just have to install the right libre program, right?
On the other hand, though i don't know much about the technical structure of
the internet, i believe your email has to pass a lot of servers anyway, even
if you send it with your own mail server.
Is that true?
So it comes down to the question if you want to subdivide the process of
sending an email into smaller parts or just take it as one single process.
You can't have email contact to another person just with your own computer,
but you could do some parts of it.
