Block Unknow Email Sender in Yahoo
Are you getting unwanted Emails from an unknown sender in Yahoo mail account? Now, you can get rid of this problem with the help of Yahoo customer care Number.
Just click to block by yourself: http://yahoo-support-numbers.strikingly.com/blog/how-to-block-an-email-sender-in-yahoo-mail-and-why-we-need-to-do-it
In case If you are facing the problem by doing this steps. Then, You can contact directly Yahoo Customer Support Number. They will help you instantly. (Number is mention below).