"Innovative hardware"? It says it's an ARM, with a secure root of trust. There's this Bluetooth "proximity token". Looks cool, I guess.
It's running Linux, Dovecot, Postfix and Nextcloud.
"Email senders now support sending emails over an encrypted SSL/TLS channel where the email is only decrypted once it reaches your personal email server. Helm is not able to decode these emails because we don't have access to the encryption key."
Yabbut, Helm is that personal email server; Helm is the terminator of the TLS encryption. The email is in plaintext by the time it reaches Postfix. Postfix then stores it in an encrypted disk, but Helm can decrypt the disk. Please try again!
Then there's this business about email deliverability. My experience is that if you have run a nice, clean email domain for (say) 8 years, then you won't have serious deliverability problems for personal email. But if that's the case, then you already know how to set up and run an email server, right?
People on HN are saying that Helm retains the root account on this device, but I can't find that information on the website. If it's true, then that would be completely the opposite of retaining control of your own data. Here is a pile of FOSS software, running on commodity hardware, where I have complete control; and here's Helm, with the same stuff, but - a proximity key, and offsite backup - in exchange for $100PA subscription, and I have to hand over root.
What's the benefit, and how come they're sold out?