| Member | Value | Description |
|---|---|---|
| popBad | 1 | The server has responded with a negative status. |
| popContent | 5 | Indicates intermediate events during the receipt of a mail message. Useful for percentage indication on a status display. |
| popCount | 3 | The Count property has been updated. |
| popDeleting | 8 | Indicates a message delete has been acknowledged. |
| popInfo | 2 | The server has supplied information. |
| popOk | 0 | The method has completed with a positive status. |
| popPreview | 6 | Retrieval of a complete message header plus preview lines. |
| popSize | 4 | The message Size property has been updated. |
| popUidl | 7 | Retrieval of a message UID label. |