Good morning Matthew,
As far as I'm aware only site administrators receive the notification, it's not something you can configure within cohorts/audiences as the only alert you can enable in there is for when members are added/removed etc.
The notification for broken rules is a 'system level' event, i.e. somethings not working - admin gets notified.
Hope this helps,
All the best,
David Cardiff
Support Services Team Leader
UNITED KINGDOM
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