--- name: "newsletters_send_issue" area: "newsletters" title: "Send an issue" price: "free" method: "POST" url: "https://api.conecto.chat/v1/tools/newsletters_send_issue" mcp_server: "https://api.conecto.chat/mcp/newsletters" auth: "Authorization: Bearer " docs_url: "https://conecto.chat/tools/newsletters/newsletters_send_issue" --- # Send an issue (`newsletters_send_issue`) Sends a draft to everyone who confirmed, now or at a set time, through the business's own email service. Send a draft to everyone who confirmed, now or at send_at, through the business's own email service. It goes out in batches, within the service's daily limit when one is set; newsletters_get_issue shows how far it got. It is checked first: one that looks like cold outreach isn't sent. Free. Price: Free. A call that fails costs nothing. ## Use it when The issue was tested and approved. - For a test to the owner first, use [newsletters_send_test](https://conecto.chat/tools/newsletters/newsletters_send_test.md). ## Say this to your agent > Send the October newsletter on Thursday at 9 in the morning. ## Inputs | Name | Type | Required | Description | Allowed values | Default | |---|---|---|---|---|---| | `issue_id` | string | yes | The issue_id newsletters_write_issue returned. Exactly 36 characters. | | | | `send_at` | string | no | When, as ISO 8601 with a time zone, e.g. 2026-10-20T09:00:00+02:00. Now if left out. Up to 40 characters. | | | ## Example Written for Halverson Cycle & Repair, a bike shop with a repair workshop in Portland, Oregon. MCP: call `newsletters_send_issue` on the MCP server `https://api.conecto.chat/mcp/newsletters` with these arguments: ```json { "issue_id": "0c6e2a9f-4d1b-4e8a-9b3c-7f5d2e1a8c40", "send_at": "2026-10-22T09:00:00-07:00" } ``` REST: ```bash curl https://api.conecto.chat/v1/tools/newsletters_send_issue \ -H "Authorization: Bearer $CONECTO_KEY" \ -H "Content-Type: application/json" \ -d '{"issue_id": "0c6e2a9f-4d1b-4e8a-9b3c-7f5d2e1a8c40", "send_at": "2026-10-22T09:00:00-07:00"}' ``` ## Response ```json { "call_id": "5f0c8a2e-3b7d-4c1e-9a64-2d8e1f7b0c93", "tool": "newsletters_send_issue", "status": "succeeded", "replayed": false, "cost_usd": "$0.00", "balance_usd": "$19.75", "result": { "issue": { "issue_id": "0c6e2a9f-4d1b-4e8a-9b3c-7f5d2e1a8c40", "number": 1, "subject": "Winter tires are in, and our tune-up special", "preheader": "All-weather and studded tires, and 15% off tune-ups from October 24.", "status": "scheduled", "send_at": "2026-10-22T09:00:00-07:00", "web_url": null, "created_at": "2026-10-14T08:00:00+00:00", "finished_at": null, "problem": null, "results": { "recipients": 3, "sent": 0, "failed": 0, "skipped": 0, "bounced": 0, "unsubscribed": 0, "people_who_clicked": 0 } }, "note": "Scheduled." } } ``` `result`: The issue (scheduled or sending) with its results so far and problem (what holds it up, if anything), and a note. ## Errors | Code | Status | When | Fix | |---|---|---|---| | `not_found` | 404 | No issue of the business has that issue_id. | Find it with newsletters_list_issues and use its issue_id. | | `not_draft` | 409 | The issue was scheduled or sent already; only a draft can change or be sent. | Write a new issue with newsletters_write_issue. | | `no_subscribers` | 409 | Nobody has confirmed a subscription yet. | Invite people with newsletters_invite and send once some have confirmed. | | `invalid_input` | 400 | send_at has no time zone, or is more than 90 days ahead. | Send a time like 2026-10-22T09:00:00-07:00, within 90 days. | | `sending_unavailable` | 403 | The business cannot send newsletters right now. | Do what the message says (often: top up once), then send again. | | `no_sending_service` | 409 | The business has not connected its own email service. | Connect it with newsletters_connect_service (its SMTP server, login and from address). | The refusals every tool can give (401 key, 402 balance, 429 limits) are on the errors page: https://conecto.chat/docs/errors.md ## Related - [newsletters_connect_service](https://conecto.chat/tools/newsletters/newsletters_connect_service.md): Connects the business's own email service (Brevo, Amazon SES, Mailgun or any SMTP server), which every newsletter email goes out through. Free. - [newsletters_remove_service](https://conecto.chat/tools/newsletters/newsletters_remove_service.md): Disconnects the business's email service and forgets its password; newsletters wait until one is connected again. Free. - [newsletters_create](https://conecto.chat/tools/newsletters/newsletters_create.md): Creates a newsletter people join on its own page by confirming their address, sent through the business's own email service. Free. - [newsletters_update](https://conecto.chat/tools/newsletters/newsletters_update.md): Renames a newsletter or changes its description, postal address or archive. Free. - [newsletters_list](https://conecto.chat/tools/newsletters/newsletters_list.md): The business's newsletters with their pages and subscriber counts, and the email service they go out through. Free up to 1,000,000 reads a month. - [newsletters_invite](https://conecto.chat/tools/newsletters/newsletters_invite.md): Emails each person a request to confirm a subscription; only those who confirm ever get an issue. Free. - [newsletters_subscribers](https://conecto.chat/tools/newsletters/newsletters_subscribers.md): Who is on a newsletter, newest first: confirmed, waiting to confirm, unsubscribed, bounced or complained. Free up to 1,000,000 reads a month. - [newsletters_remove_subscriber](https://conecto.chat/tools/newsletters/newsletters_remove_subscriber.md): Deletes someone from a newsletter for good, with their history. Free. - [newsletters_write_issue](https://conecto.chat/tools/newsletters/newsletters_write_issue.md): Writes a draft issue in Markdown, to test and then send. Free. - [newsletters_update_issue](https://conecto.chat/tools/newsletters/newsletters_update_issue.md): Changes a draft issue's subject, body or preheader. Free. - [newsletters_send_test](https://conecto.chat/tools/newsletters/newsletters_send_test.md): Emails an issue to up to 5 addresses as subscribers will see it, marked [Test]. Free. - [newsletters_cancel_issue](https://conecto.chat/tools/newsletters/newsletters_cancel_issue.md): Stops a scheduled issue, or one still going out; what went out already stays sent. Free. - [newsletters_get_issue](https://conecto.chat/tools/newsletters/newsletters_get_issue.md): One issue: its text, where it stands, and once sent how many it reached, bounced, unsubscribed and clicked, link by link. Free up to 1,000,000 reads a month. - [newsletters_list_issues](https://conecto.chat/tools/newsletters/newsletters_list_issues.md): A newsletter's issues, newest first, optionally of one status. Free up to 1,000,000 reads a month.