How to go to next mail in gmail using keyboard

To go to the next email in Gmail using your keyboard, you can use the following shortcuts:

These shortcuts work in the inbox view, where you see a list of emails. When you're in the inbox view, you can use the J and K keys to navigate through the emails.

If you're in a specific email and want to go to the next one, you can use:

Note that these shortcuts only work in the inbox view, and not in other views like the "All Mail" or "Sent Mail" views.

Also, you can use other keyboard shortcuts in Gmail, such as:

You can find more Gmail keyboard shortcuts by typing "Keyboard shortcuts" in the Gmail search bar.