Possible enumeration values:
| Name | Value | Description |
|---|---|---|
| ALL |
0 |
List all messages regardless of status. |
| ACTIVE |
1 |
List all messages that are currently active. |
| CANCELLED |
2 |
List all messages that have been cancelled. |
| EXPIRED |
3 |
List all messages that have expired. |
| FAILED |
4 |
List all messages that have failed. |