If you have subscribed to newsletter or getting information through any other source then you will receive emails related to it. Although, if you don’t want to receive the email then you need to unsubscribe them. And if you have already unsubscribed them but notice that this feature is not working then it might be bit troublesome. Users might encounter with such an issue because of incorrect procedure of unsubscription. So, it is advisable to make sure that the process if Yahoo unsubscribe feature is done accurately and you don’t face Yahoo mail unsubscribe not working issue.