I recently set up simple standard setup (postfix/dovecot/spamassassin) and it works fine. There's small amount of spam, like few mails per week, nothing to worry about. I can receive and send mail just fine.

Though I admit that for someone who did not tinker with UNIX for years, configuring this kind of setup might be daunting.

Personal mail could be solved by some kind of daemon which provides SMTP, IMAP, built-in spam detection, DNS checks, some simple administration web interface and works with 0 configuration for typical use-cases. Maddy could be this project, so I would be happy to replace all those daemons with a single binary. I hope that they'll implement spam detection, as rspamd is a separate daemon which requires redis, so in the end it's still a complex setup with lots of moving parts.