Got myself a Pi, a plastic box, a memory card, a big usb key, wrote my own SMTP server in super …

> The main issue: spamhaus block lists, they are hostile to all self-hosted people Allow me to correct that for you. There is nothing wrong with spamhaus. They provide one of the best anti-spam options amongst all the commercial providers. Spamhaus have many lists, I suspect the one you are referring to is the PBL, in their words "DNSBL database of end-user IP address ranges which should not be delivering unauthenticated SMTP email to any Internet mail server except those provided for specifically by an ISP for that customer's use." . We are in 2023, I think it is beyond any sort of doubt by now that a significant proportion of spam and phishing mails originates from home internet connections because people can't be bothered to keep their computers up to date and virus free, so they become part of a botnet. So the fact of the matter is that even if Spamhaus PBL did not exist, someone els…

Your efforts are commendable, but you're not correct about Spamhaus and being forced to use Google / Apple. For starters, nobody is ever forced to use a web browser with email. I'm OK with the fact that pine will parse some of the HTML so I don't see all the silly tags in most email, but it will never follow a link, at least. If your IPv4 and/or IPv6 is on a Spamhaus list and you can't get it / them removed, likely because you're in a pool of residential IPs, and likely in part because you can't control the PTR, then you can always smarthost through any reasonable provider. I've been self-hosting email for a quarter of a century, and I'd never blame anyone else if I tried to send email from a residential pool of IPs and it didn't work. Not sure what this has to do with setting up a nice little ARM server, besides your observation that the ARM architecture is licensed, but here we are :)