Why can i not send e-mails?

I'm able to receive my incoming emails, but when I try to send emails out they are not going out. When I look in my sent emails it shows that they were sent out, but they are not ...show more

When I want to read my emails I get empty page, I also can't sent emails.When I check old emails it is also empty pages..what is it??

I downloaded ypops so that i can use microsoft outlook to manage my emails in yahoo mail. I can receive emails but i cant send. When i send emails, i will receive a message with the subject "undeliverable message". Every time I open ypops,...

After I just changed my password, I cannot send messages. When I try to send a message, I get the following error: "Your message could not be sent." Retry I can get ...show more

When I want to send a copy of an email that I received, I click on the proper arrow, but when I want to send it to someone, my list of contacts comes up and when I click on a name, ...show more

I have everything set up to send & receive my yahoo mail thru my outlook express. I can receive emails but I can not send them. Can you help me?

when I go out of town and staying in a hotel, I am unable to send and delete emails from my Yahoo account. I am able to receive IM and delete them, but not emails. I am able to use all other sites with no problems. It seems to be just with my yahoo....

I was invited to join a yahoo group. After I accepted, I am able to receive emails from the group through my gmail account. But I can't respond to the emails nor send out emails to the group from my gmail account. When I try to reply or send out an email...

my friends and my family has e-mail address from cox.net,but that can't be why.they receive mine but i don't get any from them..when you write a message to someone do you have to go under email or text?may sound like a stupid answer but i'm tired of...