Distribution Lists

Send an email to a distribution list

POST/distribution-lists/{distribution_list_id}/sends

Emails the list's active members and returns the send with a Location. Delivery completes after the response: it starts as queued, and status, email_count and failed_count update as it proceeds. deal_ids (up to 20 deals you can see) adds them to the email. A disabled template or a list with no active members returns 409 conflict. dry_run shows the count and sends nothing. Emits distribution_list_send.created. Sent email cannot be recalled.

Path parameters

  • distribution_list_idintegerRequired#

    The distribution list's id. Distribution lists are keyed by integer ids, not UUIDs. An unknown list, one in another organisation or a deleted one returns 404.

Query parameters

  • dry_runboolean#

    Validate and run the call without committing it, returning what the real call would return with meta.dry_run set.

Headers

  • Idempotency-Keystring#

    Makes a retry safe. Send a new UUID for each new request and reuse it only to retry that request; the first response is replayed for 24 hours.

Request body

application/json, required · DistributionListSendCreate

  • subjectstringRequired#

    The email's subject line.

  • bodystringRequired#

    The email body, as HTML.

  • deal_idsstring (uuid)[]#

    Deals to present in the email, each one you can see. Leave it out to send the body alone.

{
  "subject": "Quarterly update",
  "body": "<p>Our latest quarterly report is ready.</p>"
}

Responses

201

The send was accepted and is being delivered.

DistributionListSend
{
  "data": {
    "id": "9a9d1c5e-4f2b-4c8e-9a7d-2f1e6b3c4d5a",
    "status": "queued",
    "recipient_count": 1,
    "email_count": 1,
    "failed_count": 1,
    "error": "string",
    "deal_ids": [
      "9a9d1c5e-4f2b-4c8e-9a7d-2f1e6b3c4d5a"
    ],
    "created_by": "9a9d1c5e-4f2b-4c8e-9a7d-2f1e6b3c4d5a",
    "created_at": "2026-06-12T10:00:00+00:00",
    "updated_at": "2026-06-12T10:00:00+00:00"
  }
}
401

Authentication failed. error.code is one of invalid_token, expired, revoked.

Error
403

Authorization failed. error.code is one of org_disabled, ip_blocked, missing_scope, scope_disabled, user_disabled.

Error
404

Resource not found (error.code = not_found).

Error
409

The request conflicts with existing state (error.code = conflict), e.g. a compliance flow with the requested name already exists.

Error
422

The request can't be processed (HTTP 422): validation_failed with one ErrorDetail per problem, or a code documented on the operation.

Error
429

Rate limit exceeded (error.code = rate_limited).

Error

Examples

curl -X POST https://your-org-domain/kong/core/api/v2/distribution-lists/{distribution_list_id}/sends\
  -H "Authorization: Bearer $HELM_API_KEY"\
  -H "Content-Type: application/json"\
  -d '{
  "subject": "Quarterly update",
  "body": "<p>Our latest quarterly report is ready.</p>"
}'