Yahoo Messenger has been discontinued
Support for Yahoo Messenger ended on July 17, 2018. The service and access to chat history are no longer available.
We know there are many loyal fans who used Yahoo Messenger since its beginning as one of the first chat apps of its kind. As the communications landscape continues to change, we're focused on building and introducing new, exciting communications tools that better fit consumer needs.
No. Even with the app installed on your computer or phone, access to Yahoo Messenger is no longer available.