Here's a video that explains how to do that.
Think you should go this link as well , as have used this link resolve my issue related to yahoo, so just try this link:
Dell company is situated
in the round rock in the Texas. This company is named after its founder name
that is Michael Dell. This company is founded on the 1 February in the year
1984, this is a well-known multinational computer technology company. Our
website contains the support number of the different dell products.
i really glad too see your post always you post very interesting .if you have any issue in mac or apple product .and you want any .mac support
Visit here to https://goo.gl/GgRicR to know all information in detail that "How to secure your yahoo mail account