Setting up a Gmail account with the pop servers are little bit tricky. When you setup it on the outlook application. You have to go through many challenges due to the security reasons. If you will not enter the account information correctly. you will receive so many errors related to the pop servers.
If you are currently unable to get the audio from your Lenovo laptop. It might be happening because speakers or audio driver settings. apart from this, sometimes the audio issue occurs because other windows and audio settings.