Deleting Emails on my Gear S2

[bksalt]

I have been deleting my emails by taping on email button going to email view all, than hit the email, than the 3 dots, than check the message with a check mark, than hit the trash can, than it says deleted. but when I check my messages they keep building up on there I now have 85 emails on there. How do I remove them perminatly? any help is appreciated

thanks in advance
Bert