The email scheduling tab from the dashboard is a great way to reference any email blasts being sent out though your organization. This includes email blasts and report subscriptions. Across the top you will see different tabs to choose from.
The Detailed Report Subscriptions tab will give you a summary of when a detailed report was last sent, and when it will be scheduled to send again. This is the same functionality as event report subscriptions. These subscriptions can be set up in events and you can see more about this here.
If you would like to edit who a report is sent to or when it is sent, simply click the pen icon to the right of the email subject. This will allow you to make any changes necessary.
The email blasts tab will give a summary for any emails that are scheduled to go out for any event in your organization. To see more about how to schedule event emails, click here.