| Name | Type | Description | Notes |
|---|---|---|---|
| to | str | Recipient phone number in E.164 format | [optional] |
| body | str | Your message | |
| subject | str | Subject line (max 20 characters) | |
| _from | str | Your sender ID | [optional] |
| country | str | Recipient country | [optional] |
| source | str | Your method of sending | [optional] [default to 'sdk'] |
| list_id | int | Your list ID if sending to a whole list (can be used instead of 'to') | [optional] |
| schedule | int | Schedule time in unix format (leave blank for immediate delivery) | [optional] [default to 0] |
| custom_string | str | Custom string for your reference | [optional] |
| from_email | str | Email to send replies to | [optional] |