#1MinuteTip In Salesforce users can subscribe to a maximum of 5 reports or dashboards. This maximum limit is a hard limit and cannot be increased.
If you want to find out all the reports that you are subscribed to just navigate to Reports tab -> select “All Reports” from left sidebar and sort the reports on “Subscribed” column.

Thanks! What a pain. We found an appexchange solution: https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3A00000FAgN6UAL
It did the trick (although this should be otb).
Thanks for the information, Rob