No one can access my e-mail. They keep ret. the mail saying not a member of yahoo.?

This has been happening for some time now, Yahoo are working on it they say but for now try this.Recommended fixes for the many current problems include Update Adobe Flash Player Internet Explorer and Java script . Clear Explorer cache, cookies, and browsing history. Some find that a return to clic mail improves things. You could also try an alternative browser. Hope this helps