I only seem to be getting the "Recent activities" email notification when the Alfresco instance is restarted, rather than daily. Other adhoc email notifications are being sent (e.g. in workflows etc), so it's only the summary that is not.
Any idea which component to check? There's a lot of information in the catalina.log file, so I don't know what to grep/filter by, other than "-i activities" which brings up the startup/shutdown of the "ActivitiesFeed" subsystem, but not errors related to it.
Or is there additional configuration required (e.g. crontab) to trigger the daily updates?