Yahoo Mail has brought a lot of new features into its iOS and Android app, including bringing over Stationery to Android. But the one feature we know users will appreciate is being able to take back emails, much like what you can do with Gmail. There is now an undo send option for the Yahoo Mail iOS app. When you send out an email after tapping send, an “undo” option will pop up at the bottom of your inbox feed for about three seconds, so yes, you have to react fast. There is no word yet when this’ll make it into the Android app. But Yahoo does now allow Android users to disable the swipe to delete function and customizable spacing between emails in your feed to make it more condense or to see snippets of an email. You can check out the rest of the features here.