Overdue Notification vs Payment Reminder

Overdue Notification vs Payment Reminder

Under Email Settings I am in 'Overdue Notification'. All you can set here is the the subject, message and if I want CC.

Save & Next then brings me to 'Payment Reminders'. I can set all the above plus 'When'. I choose 30, 60 and 90 days.

I want to avoid my customers getting 2 emails at the same time (Overdue Notification and Payment Reminder). When and how often does the Overdue Nofication go out versus Reminders? If it's going to pile up 2 emails on my customer, can I turn Overdue Notification off?

TIA