curl --request POST \
  --url https://api.craftkit.dev/v1/renders/{id}/email \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "client@example.com",
  "recipientName": "Jane Doe",
  "message": "Please find your invoice attached."
}
'

{
  "id": "9a8b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d",
  "shareToken": "shr_abc123",
  "shareUrl": "https://api.craftkit.dev/share/shr_abc123",
  "emailMessageId": "re_xxx",
  "sentAt": "2026-06-21T10:05:00.000Z"
}