Undelete Method
Undeletes messages marked for deletion.
Syntax
int Undelete();
Remarks
This method sends an RSET command, which tells the server to undelete all previously deleted messages by removing their 'delete' marks.
Note that this method only applies to messages deleted within the same session.
Error Handling
This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)