As we all know that there is many email service provider just like others Yahoo also have some critical issues to resolve that you need technical support. For mail resolution you need to contact Yahoo Customer Service. Yahoo is a popular web based email service which offers excellent services to its users and is one of the most popular email services with lots of users worldwide. Although it is a very popular email service and has lots of customers but like all other web based services it can also have some technical issues with its services which need technical support to resolve.