You can disable your subscriptions summary by following these steps:
Mobile:
- Open Edison Mail
- Tap Settings from the app menu
- Tap Summary
- Tap Turn off Summary at the bottom of the page.
Alternatively, when you open the latest subscriptions summary, there will be a bar at the top that says "Change" in the top-right corner, tap that and then tap Turn off Summary at the bottom of the page.
Desktop:
- Open Edison Mail
- Tap Email (located next to File menu)
- Tap Settings
- Tap the Summary tab
- Tap Turn off Summary at the bottom of the page.