Colophon · Vol. I — № 001
A journal for the reader who is
three businesses at once.
Folio is an email client built to a single premise: that the person who owns four domains is not four people. The category phrase — the inbox for one person running many businesses — is the whole prospectus. Everything below is commentary.
I · A letter from the editor
The inbox was never designed for you.
Somewhere around 2006 the standard inbox settled into its current shape — a single-column list of threads, addressed to a single self, belonging to a single job. Gmail shipped that shape to a billion mailboxes and the shape stuck. Every newer client inherited it: Superhuman, Hey, Fastmail, Proton. Faster keyboards, prettier typography, the same single-self premise.
But the reader this product is for hasn't been single-self for a long time. She has a consulting practice on one domain, a publication on a second, a product company on a third, and the LLC that holds them all on a fourth. The thing she does on a Tuesday at 8:12 AM is not the same thing she does at 10:40 — and the inbox she opens at 8:12 isn't supposed to remember who she was at 10:40.
The working compromise today is four Chrome profiles. Four sidebar icons, four sets of bookmarks, four mental contexts to swap into. It works the way one-cook kitchens work — technically, if you don't look at the pan.
“The inbox has always been designed for a single self. Yours isn't.”
Folio starts from the opposite premise. The reader is one; the identities are many; the inbox should make that visible in the margin of every letter, not buried six settings deep. So we did the blunt thing. Every domain gets a colour stripe. Every reply auto-fills its From from the address the letter arrived at. Every outbound signature is DKIM-signed by that domain's own key, not a shared one.
We also did the blunt thing with price. Workspace charges per user, times every domain you register. We charge per person. You are one person; one price covers every business you run on top.
II · Three decisions we won't reverse
The things we'll keep saying no to.
01
Single user, always.
We will not add teams, shared inboxes, or role accounts. The moment an inbox is shared, it ceases to be a reading surface and becomes a workflow. Those are different products, built on different trade-offs, and Folio is explicitly the first one.
02
Flat price, forever.
No per-domain tier. No "advanced" plan hiding DKIM-per-domain behind a paywall. The product is simple enough that a pricing page which takes more than forty seconds to read is a failure of design.
03
Editorial, not enterprise.
The product is a reading surface, not a queue. That means slow typefaces, warm paper, quiet animations, no unread-count in the tab title nagging for attention. You open Folio when you have ten minutes to read, not twenty seconds to triage.
III · Who it is for
Four shapes of the same reader.
IV · Common questions
What should a new reader know?
Who is Folio built for?
- Folio is built for one person operating multiple businesses, domains, brands, or side projects. It assumes the reader is one human with several public identities, not a team inbox and not a consumer mailbox with a few aliases.
Why make email single-user instead of team-based?
- The product is deliberately single-user because shared inboxes become workflow queues. Folio focuses on the reading surface for an operator who owns every domain, answers every letter, and needs the software to preserve identity context automatically.
What makes Folio different from a normal inbox?
- Each bound domain gets a stable color stripe, its own DKIM key, and an auto-selected reply From address. The inbox stays unified for reading, while sending reputation and public identity stay partitioned by domain.
Sources
Colophon
Set in Fraunces (display & text) and IBM Plex Mono (small caps, figures, and DNS). Printed in burnt sienna and ink black on warm paper. The inbound MTA is Haraka; the outbound is Amazon SES; the store is a single-table DynamoDB with Point-in-Time Recovery.
Start correspondence
Read one morning in the inbox.
The fastest way to understand whether an editorial, single-user, multi-domain inbox fits your week is to try one morning in it. The first 100 sends and the first domain are free, no card.