HaileyBot does not log or save any message data. Server administrators can choose to enable a modlog feature, where messages will appear in the designated channel if edited or deleted. For this feature to work, message content needs to be stored in RAM, so HaileyBot keeps a cache of messages for one hour. The cache is never saved to disk, and in the event of a restart will be cleared automatically. An example of the modlog feature can be seen in the publicly viewable #mod-log channel of HaileyBot's support server.