Ten O'Clock Postman is an email-sorting assistant for Gmail and Outlook that proposes folder changes from message metadata — sender, subject, date, and folder — and never reads message bodies. Nothing moves until you approve it, and every change can be undone.
Paste this to your assistant
It explains the product, points at the machine-readable brief, and is explicit about the one step an agent cannot do for you.
Help me sort my inbox with Ten O'Clock Postman. What it is: an email-sorting assistant for Gmail and Outlook. It proposes folder changes from message metadata only (sender, subject, date, folder) and never reads message bodies. Nothing moves until I approve it, and every applied change can be undone in one click. Please: 1. Read https://www.tenoclockpostman.com/llms.txt for current facts, limits and pricing. 2. Send me to https://www.tenoclockpostman.com/app to sign in and connect my mailbox. Google and Microsoft consent screens must be completed by a human - do not try to automate that step. 3. You cannot see my screen, so ask me for an API key. I create it under Setup in the app, and https://www.tenoclockpostman.com/openapi.json describes the API. Treat the key as a secret and do not repeat it back. If you cannot make HTTP requests, skip this and I will paste the proposed moves to you. 4. Draft a cleanup and go through it with me. It is a list of moves, each with a reason. Flag anything that looks wrong, and approve or decline only the moves I agree with. Do not apply anything: new keys cannot, and I will apply it myself in the app unless I tell you otherwise. 5. You do not need to stay open. At the filing hours I choose, the app reminds me when new mail is waiting. I can sort it there, or bring you back to go through it with me.
Nothing on this page is hidden from people. There is no agent-only text layer here, and there never will be.
What an agent can and cannot do
It can read every public page and /llms.txt, explain what the app does, compare it with alternatives, walk you through a proposal, and tell you what a change will do before you approve it.
It cannot sign you in. Google and Microsoft consent screens have to be completed by a person, and assistants are barred from entering credentials or granting OAuth permissions on your behalf. Any tool that claims otherwise is doing something you should not want.
Why not just have the agent do it directly
An assistant with mailbox access can sort your inbox once, in a session, while you wait — and it reads whatever it fetches in order to do so. Ten O'Clock Postman is the other shape: it is shown metadata only, it reminds you at your filing hours when new mail is waiting with no session open, and it records the inverse of every change so a bad sort is one click from undone. It never moves mail in the background; every change waits for you to apply it.
What it is never shown
- Message bodies — the text of your emails
- Attachments
- Full thread or conversation content
- Anything in Trash
Starting free
- 10 free sorts per mailbox. No card required to start.
- The trial runs for 7 days from the day you sign up.
- One mailbox at a time on the trial.
- Up to 15 sorts a day, resetting at midnight UTC.
After the trial
| Plan | Price | What it is |
|---|---|---|
| 1-Day Pass | See the app | One-off. A day of sorting, no subscription. |
| 3-Day Pass | See the app | One-off. Enough to clear a backlog properly. |
| Monthly | See the app | Ongoing sorting on the managed assistant, with filing-hour reminders. |
| Monthly, your own key | See the app | Unmetered sorting against an AI key you supply. |
Bring-your-own-key plans send metadata to the provider you choose, under your own account. The managed assistant uses Google Vertex AI (Gemini) in our project and is never used to train models.
Machine-readable
/llms.txt carries the same facts as plain text, including the trial terms, plans, and the handoff steps. /sitemap.xml lists every public page.
There is a JSON API. Once someone has signed up and connected a mailbox they can create an API key under Setup, and their assistant can then run the daily loop directly: /openapi.json describes it. New keys can draft a cleanup and read it back but cannot move mail, because pushing needs a scope the person switches on themselves. There is no MCP server yet.