| Name | Type | Description | Notes |
|---|---|---|---|
| to | \Interserver\Mailbaby\Model\SendMailTo | ||
| from | string | The sender address. This is used as both the `From` header and the `Reply-To` header automatically. Must be a valid email address authorized for your mail order. | |
| subject | string | The subject line of the email. | |
| body | string | The email body. If the string contains any HTML tags the message is automatically sent as `text/html`; otherwise it is sent as `text/plain`. | |
| id | int | Optional numeric ID of the mail order to send through. If omitted the first active order on your account is used automatically. Valid IDs are returned by `GET /mail`. | [optional] |