TIdIMAP4StoreDataItem is an enumerated type that represents the flags to be used for the IMAP4 STORE command. TIdIMAP4StoreDataItem can contain one of the following values:
sdReplace - Replaces flags for a message and returns the new values.
sdReplaceSilent - Replaces flags for a message without returning the new values.
sdAdd - Adds the specified flags to a message and returns the new values.
sdAddSilent - Adds the specified flags to a message without returning the new values.
sdRemove - Removes the specified flags in a message and returns the new values.
sdRemoveSilent - Removes the specified flags in a message without returning the new values.
TIdIMAP4StoreDataItem is used in TIdIMAP4.StoreFlags to update mailbox messages with the message flags and store method sprcified.