| Platform SDK: CDO for Windows 2000 |
The CdoDSNOptions enumeration is used with the IMessage.DSNOptions property to set delivery status notification flags for the message.
| Name | Value | Description |
|---|---|---|
| cdoDSNDefault | 0 | No delivery status notifications are issued. |
| cdoDSNNever | 1 | No delivery status notifications are issued. |
| cdoDSNFailure | 2 | Returns a delivery status notification if delivery fails. |
| cdoDSNSuccess | 4 | Returns a delivery status notification if delivery succeeds. |
| cdoDSNDelay | 8 | Returns a delivery status notification if delivery is delayed. |
| cdoDSNSuccessFailOrDelay | 14 | Returns a delivery status notification if delivery succeeds, fails, or is delayed. |