Writing

Longer arguments, published as we make them.

• What happens when you lose your phone There's no password reset on DMCN, and that's on purpose. Here's what happens when you lose a device, and the bit of setup that makes the difference. 5 Oct 2026
• How I think email should work Every email involves a mailbox holder, a domain owner, and a mail server host, yet you can't check that it really came from the address it claims. Here is how I think email should work so that you can. 26 Sep 2026
• Your provider already ran the check and made the choice SPF, DKIM, and DMARC are computed on every message that reaches you. The result is real, it is checkable, and it gets spent on a decision being made for you. 8 Sep 2026
• Solve the trust issue, and privacy falls out for free Twenty-five years of selling people encryption produced almost nothing. Not because the ask was too hard, but because it was the wrong ask. 6 Sep 2026
• Spam is not a filtering problem You cannot tell your inbox "always this person" or "never this person" and have it be true. Filtering is what you get instead of that, and no amount of tuning turns a guess into a decision. 6 Sep 2026