BlueMail can display Previous and Next navigation buttons in the mail view, allowing you to quickly move between emails without returning to the list.
To enable this option:
- Go to Settings | Global Settings | Advanced Features.
- Make sure Swipe to Navigate Emails is enabled — the Prev/Next option can't be turned on without it (the app tells you: "Enable 'Swipe to navigate Emails' to use this option.").
- Toggle Display Prev/Next Mail View Action Buttons on or off.
More ways to move between emails are in How to Move/Navigate Between Emails.