Gmail is getting a brand new inbox on desktop and mobile that puts you back in control using simple, easy organization. On the desktop, the new inbox groups your mail into categories which appear as different tabs. You simply choose which categories you want.
Your inbox is organized in a way that lets you see what’s new at a glance and decide which emails you want to read when. You can easily customize the new inbox
The new inbox is rolling out gradually. If you’d like to try out the new inbox on Desktop sooner, select the Settings options and click to Configure inbox.
For more information:
Google Apps, Google Apps for Business, Education, and Government