Yahoo debuted a new Mail app back in the fall, and today the mobile software is getting a few new features. First, both the Android and iOS versions will allow you to customize your swipes. This means that when you're looking at your inbox, you can opt to swipe right to archive or swipe left to mark as spam. Other actions include starring a message and marking it as read. When using a long press to select multiple messages, you can now star a group of emails or mark them as spam from the so-called multi-select toolbar in the app.