I have an iPhone6, iOS v8.1.2.
I have a gmail account that I use the GMail web interface to access.
I also use my iPhone to access that GMail account.
I am trying to achieve 2 behaviours:
1. When I delete an email on my iPhone, I want it to still be in the inbox on my GMail account when I login thru the GMail web page there.
2. When I delete an email on my GMail account through the GMail web page, I want it to no longer be on my iPhone.
#1 is of primary importance, #2 would be nice.
How can I accomplish this?