Send mail from n8n

The paperplane community node for n8n adds Send Letter and Get Status operations to any workflow — real USPS mail from $1.99 per letter, with a free sandbox mode while you build.

Community node — in the n8n nodes panel

Instead of n8n's Send Email node

Email is fine until the recipient has to be served, noticed or invoiced on paper. The community node mails the same payload through USPS and reports printed, mailed and delivered back into the workflow.

How to set it up

1In n8n: Settings → Community Nodes → Install, and search for “paperplane” (package n8n-nodes-paperplane).
2Drop the paperplane node into your workflow and choose the Send Letter operation.
3Map expressions from earlier nodes into the fields ({{ $json.text }}, addresses, your receipt email).
4Keep Sandbox enabled while you build — free, instant, end-to-end, nothing mailed.
5Disable Sandbox to go live; pay from a prepaid credit balance, or route the returned payment_url to a human for approval.

Under the hood: the request the node sends

{
  "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"
}

Check order status (Get Status operation)

GET https://sendpaperplane.com/v1/orders/{{ $json.id }}

Under the hood

The node wraps our open REST API — the plain HTTP Request node against POST /v1/orders is an equally supported path if you prefer raw requests, and covers everything: quotes, orders, and status.

Supported action fields

Every integration maps into the same fixed set of fields, the ones the REST API and MCP tools take directly.

Field	What it does
mail_class	first_class, certified, certified_return_receipt, or priority
text or pdf_url	the letter body as plain text, or a fetchable PDF to print as-is
to	recipient name + street/city/state/zip, verified against USPS data
from	return address, printed on the envelope and used for undeliverable mail
email	where the receipt and status updates go — no account required

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

Related integrations

Google Drive

Notion

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Send your first letter from n8n.

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"
  }'

All integrations · API docs

Common questions

Do I need an API key?

No. The API is open; each order carries its own payment (credit balance or Stripe link). Sandbox mode needs nothing at all.

Can I track delivery from the workflow?

Yes — the Get Status operation polls the order lifecycle (screening → printing → mailed → delivered), or set webhook_url on the order to get pushed status changes.

Does it work on self-hosted n8n?

Yes — community nodes install on self-hosted instances, and the underlying REST API is reachable from anywhere.