Yahoo has added a small but useful feature to its Web mail service that lets users filter the contents of their in-box to see only the messages from their contacts. This means that if someone's not on your contacts whitelist, you don't see their message.
Short of Yahoo Mail's built-in filters and its connections sorting, this is one of the simpler ways to cut out any in-box clutter from people you don't know. However, there's some work involved on your part to build that list of contacts. To enable the feature, users must first create … Read more