I was going through my inbox and I realized I have more than 1000 emails that were unread, actually i don't need them either so I starting searching for a way for marking all these email as read rather than selecting them and marking as read. Below are my findings for the same : With this tip you can mark all of your emails as read. Step 1 : Open your inbox and select some email. Step 2 : Click on 'More' button which will show more options in that select "Filter messages like these". Step 3 : Clear all the fields and just put 'DOCFF55' in "Doesn't have:" text box. Step 4 : Click on "Next Step" Step 5 : Select "Mark as read" Step 6 : Check the check box next to "Create Filter" button. Step 7 : Click "Create Filter" Done !! You can also refer to the youtube video where I got the solution :) http://www.youtube.com/watch?v=zxzTFADzk2c