Possible enumeration values:
| Name | Value | Description |
|---|---|---|
| Default |
0 |
Use the default Signature required for any carrier |
| Adult |
1 |
Adult Signature Required - Typically over 18 years of age |
| Direct |
2 |
Direct signature required - recipient name can only sign |
| Indirect |
3 |
Indirect signature required - anyone at recipient address can sign |