*With ‘better’ I mean that an encrypted solution is adequate in these cases because the mails are on other servers, and the companies/servers depend on the jurisdiction where they are located. But by hosting a mail server at home, even unencrypted, we are 100% in control of our data.

PS: is there a self-hosting mail server solution that stores everything encrypted? I already self-host almost everything I use, but not email.

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[–] mox@lemmy.sdf.org 3 points 1 month ago* (last edited 1 month ago)

It takes a bit of reading into SPF, DMARC, DKIM etc.,

That alone is often (usually?) not enough. Since many IP addresses are already blackholed before you even set up a mail server on one, there is also the slow and sometimes painful process of:

Figuring out by trial-and-error which recipients are not receiving mail from you (or are receiving it directly into their spam folders).
Figuring out which email filtering services are used by those recipients' mail providers.
Figuring out how to contact those filtering services.
Figuring out what process each filtering service uses for requesting removal from their blacklists (or adding to their whitelists).
Navigating each of those processes.
Submitting documentation of having done so.
Waiting and hoping for the filtering services accept your request and start allowing mail from you.

...and then starting all over again every so often, whenever a filtering service changes their configs or a new one appears.

It can be done, and you might get lucky, but it often requires tenacity and a lot of patience.