Of course, I've increased time actually speaking to people and asking them not to email me, but as I'm connected to lots of different people this doesn't work in the long term.
Then, I tired Getting Things Done, with Evernote and The Secret Weapon.
Basically, can the email reply be done in 2 minutes, if not then tag it and store it for later.
The two big problems I found were that I was really just moving a large in box into a large do it later box, and that I was spending large amounts of time tagging emails, it didn't feel intuitive.
Email zero and bankruptcy seemed like the next logical place, but again works well for business for less so for a complex role like mine.
So, to today. I'm going to try and blend all of the above.
Using my work exchange email I've set up the following folder:
In parallel I'm using Wunderlist to structure work into projects, tasks and finish.
I'll give it a month and report back...