Gmail puts the newer emails first as follows:
- [email protected] | Dogs issue | 19:40
- [email protected] | Important facts from Jupiter | 14:03
- [email protected] | You coming? | 09:25
Everything else (already seen email)
- [email protected] | Dinosaurs still exists! | 17:13
- [email protected] | Yep or Nope | 14:08
- [email protected] | Whatever? | 09:27
I think it is better to start reading the oldest non-seen emails:
- [email protected] | You coming? | 09:25
- [email protected] | Important facts from Jupiter | 14:03
- [email protected] | Dogs issue | 19:40
Everything else (already seen email, same order: first the newer email)
- [email protected] | Dinosaurs still exists! | 17:13
- [email protected] | Yep or Nope | 14:08
- [email protected] | Whatever? | 09:27
Is it possible? How?
UPDATE (from comments)
Gmail does not have an option for that. However, maybe there are some Greasemonkey scripts able to do that. Or some Chrome or Firefox extension.