Notion → certified mail

Move a Notion database row to "Ready to mail" and paperplane’s Zapier, Make, or n8n action sends it Certified Mail — from $12.99, with proof of mailing, no export or re-typing.

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Supported triggers and actions

Trigger	Action
Database row status changed to "Ready to mail"	Send Letter, mail class Certified ($12.99)
New row added to the database	Send Letter, mail class from a row property

How to set it up

1Keep the letters as rows in a Notion database: recipient, address fields, letter text or a link to the PDF, and a status property.
2In Zapier, Make, or n8n, trigger on the status change (or new row) and add the paperplane Send Letter action.
3Map the row’s properties into the action fields and set mail_class to certified (or certified_return_receipt for electronic proof of delivery).
4Test with Sandbox on — free, instant, nothing mailed — then go live and write the order id back to the row.

What the action sends when a row goes live

{
  "mail_class": "certified",
  "sandbox": true,
  "text": "Dear Ms. Alvarez, ...",
  "to":   { "name": "Maria Alvarez", "line1": "1 Main St",
            "city": "Richmond", "state": "VA", "zip": "23220" },
  "from": { "name": "Alex Rivera", "line1": "12 Grove Ave",
            "city": "Richmond", "state": "VA", "zip": "23221" },
  "email": "alex@example.com"
}

Under the hood

This is the same native Zapier/Make/n8n action documented on the Notion and automation-app hub pages — Notion’s own database-trigger support in those platforms is what makes the row-to-letter mapping possible, not anything Notion-specific paperplane had to build.

Or skip the automation tool: ask Claude or ChatGPT

Every integration here sits on the same MCP endpoint agents use directly. Instead of wiring a trigger to an action, ask Claude or ChatGPT to draft and mail the letter. Same three tools (quote_letter, send_letter, get_letter_status), same price, same free sandbox.

Send mail from Claude Send mail from ChatGPT

Send your first letter from Notion.

Sandbox runs the whole pipeline for free and mails nothing. Live sends start at $1.99, one all-in price.

Send a letter

curl -X POST https://sendpaperplane.com/v1/orders \
  -H 'Content-Type: application/json' \
  -d '{
    "mail_class": "first_class",
    "sandbox": true,
    "text": "Dear Ms. Alvarez, ...",
    "to":   { "name": "Maria Alvarez", "line1": "1 Main St",
              "city": "Richmond", "state": "VA", "zip": "23220" },
    "from": { "name": "Alex Rivera", "line1": "12 Grove Ave",
              "city": "Richmond", "state": "VA", "zip": "23221" },
    "email": "alex@example.com"
  }'

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Common questions

Do I need a Notion integration or API key from paperplane?

No — the automation platform (Zapier, Make, or n8n) holds the Notion connection; paperplane only receives the mapped fields in the Send Letter action, the same way it does for every other trigger source.

Can I get proof the letter was delivered, not just mailed?

Yes — set mail_class to certified_return_receipt ($14.99) for an electronic Return Receipt in addition to the mailing proof Certified already provides.

What if the row doesn’t have a full address yet?

Address verification runs before payment on every order — an incomplete or bad address returns a structured error instead of mailing, so you can fix the row and retry.