| Platform SDK: Exchange 2000 Server |
[This is preliminary documentation and subject to change.]
The CdoDSNOptions enumeration is used in conjunction with the IMessage::DSNOptions property to set delivery status notification status flags for the message.
| Name | Value | Description |
|---|---|---|
| cdoDSNDefault | 0 | No DSN commands are issued. |
| cdoDSNNever | 1 | No DSN commands are issued. |
| cdoDSNFailure | 2 | Return a DSN if delivery fails. |
| cdoDSNSuccess | 4 | Return a DSN if delivery succeeds. |
| cdoDSNDelay | 8 | Return a DSN if delivery is delayed. |
| cdoDSNSuccessFailOrDelay | 14 | Return a DSN if delivery succeeds, fails or is delayed. |