Egregoros

@feld @rl_dane I’ve run full mail servers (with SMTP AUTH, but without IMAP / IPOP3) on PogoPlugs, and they have 128 megs of memory. I’ve also run a Mac LC III+ with 36 megs, but TLS negotiation sometimes takes longer than other mail servers are willing to wait (and it can’t do more than one at a time). Memory isn’t usually an issue.

@izzy I have one of each - a 1 lane PCIe to PCI, and a 4 lane (16 slot) to PCI-X. They work well - I use them to test stuff in my Alpha machines.

@feld @rl_dane If you click the link at the top of the minimal page, you can see the dmesg.

It’s a MangoPi MQ-Pro MPi-MQ1PH, which is a 64 bit, single core, 1 GHz, RISC-V with a gig of memory running NetBSD. I got it in part because it’s pink :)

@feld @rl_dane This is one of my test email servers. It gets a public, static IP over a tinc tunnel. It’s a backup MX for more than a hundred domains and the primary MX for a test domain.

https://poofydoof.zia.io/

I think most people would be surprised at how modest a computer is required to host email.

What requires resources, really, is dealing with the half a dozen IMAP processes running simultaneously, fighting with each other, because multiple devices are configured to fetch constantly.