# Send a message

`POST /mailboxes/{mailbox}/send` · Praecise Inbox · Mailboxes

Send plain-text mail from a mailbox. If this key may only send with approval, the message is held and the result says waiting_for_approval; check send_status later. Never assume a held message was delivered.

## Parameters

- `mailbox` (path, required), string: Mailbox address.

## Request body

`application/json`

```json
{
  "type": "object",
  "properties": {
    "to": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "minItems": 1,
      "maxItems": 50
    },
    "subject": {
      "type": "string"
    },
    "text": {
      "type": "string"
    }
  }
}
```

## Responses

- `200`: Send a message
- `401`: No valid access key.
- `403`: The key may not do this on this mailbox.
- `429`: Too many calls; see Retry-After.

## Example

```sh
curl -X POST 'https://email.inbox.praecise.com/api/mailboxes/{mailbox}/send' \
  -H 'Authorization: Bearer $KEY' \
  -H 'Content-Type: application/json' \
  -d '{
  "to": [
    "string"
  ],
  "subject": "string",
  "text": "string"
}'
```