Why can`t I send an e-mail to my friends?

Sometimes I cannot receive email from my friends. I have been using this account for many years already.?

• I have been using yahoo email for many years already, recently there are some emails from two friends who consistently couldnt sent their mail through to me. But sometimes I do receive them! How is this so. If one person says he cannot get thru to me, I think its his problem. Now there are two persons saying they cant send email to this particular yahoo email address, so something must be wrong. Can anyone suggest some reasons?

• Answer:

  Yahoo is still having some problems at the moment. Suggested cures range from Update Adobe Flash Player and Javascript to clear IE7 cache, cookies, and browsing history. Different things seem to work for different people. It's causing attachments to not show, 999 errors where it won't let you do a particular action and some people cannot send receive delete or move mail. It's not just Vista either it's happening to some of us on XP. I have been advised to use this site to view my mail, www.mail2web.com if all else fails go back to classic mail via this link. http://us.mg1.mail.yahoo.com/dc/optout?script=no click yes when asked do you want to opt out. Hope this helps.