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+We run an email service called Nullhex.
+
+Nullhex is currently invite-only. An account must be manually created for you before you can log in.
+
+https://nullhex.com
+
+## a prophetic warning
+
+In order to useth nullhex, thee wilt agree to the following:
+
+1. i shall treat nullhex as a beta service that could disappear
+
+We do our best to support nullhex, but we're volunteers and
+email is tricky. If nullhex takes up too much time, we could choose
+to disable the service.
+
+This is why we support custom domains only - you get to take your
+addresses with you if we ever shut down. We would also ship you an
+archive of all of your mail. And by ship, I mean send you a tarball.
+
+2. my email could wind up in spam folders
+
+New domains are often treated with suspicion by mail providers - there's
+not a lot we can do about that. Sometimes your mail will wind up in other
+peoples spam folders (Gmail in particular is obnoxious about this).
+
+Anecdotally, this problem goes away in time. I use nullhex for one of my
+personal accounts, and I have no deliverability issues at all.
+
+3. i understand that nullhex development follows plaintext email philosophy
+
+Nullhex has an opinionated design that is suitable for sending plaintext
+email. See https://useplaintext.email for more info. The webmail interface
+is designed with this in mind, and other decisions are made with this in mind.
+
+There is nothing stopping you from sending HTML email, but it isn't treated as
+a first-class citizen in the nullhex world.
+
+## onboarding
+
+email support@cyberia.club when you're ready for us to turn
+your domain on. follow the instructions under "setup" at https://nullhex.com
+
+## ops eyes only
+
+to enable a new domain:
+
+```
+mkdomain <their-domain>
+```
+
+to create a new email account:
+
+```
+mkaddr <their-addr>
+```
+
+## allowing a user to set thier email password
+
+In order for the user to be able to set thier password, they will have to provide you with a linux "crypt3" SHA-512 hash.
+These are like the ones linux uses internally for login passwords. I created a silly little web app utility to facilitate the easy creation of such hashes in an inclusive way (does not require terminal usage or require linux to be installed):
+
+https://giit.cyberia.club/~forest/dolla-six-dolla
+
+The user can either run it from source if they like, or you they can use the version I hosted on my server here:
+
+https://picopublish.sequentialread.com/files/dolla-six-dolla/index.html
+
+Once the user provides you with a hash (it should look something like this:)
+
+```
+$6$8YgKbuOrqvuXT7Eb$tAbPMa6R8LcBQ9wTzJd6BhSxD7thIu4nNokDag1Gs4pH6pnVSIQOTrw0Cc./VrTlh//YbZ/hjCekcowmzbPo/.
+```
+
+You can edit the `/etc/mail/passwd` file & replace the existing hash for that email address with the new one.
+
+finally, `sudo service smtpd restart` is required for the password changes to "take".
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