Are you not able to send emails from your Yahoo Account? If yes, then try some simple troubleshooting steps. If you are not able to send the emails then they will get stored in outbox which is a temporary folder. At first, delete your mail from outbox and then try resending the same. If still, you are not able to send your mail then check the size of your attachments, it might be exceeding the specified limit. In case, you are not able to send the mail even after trying these basic troubleshooting steps then call the experts at Yahoo customer care number. They will provide you with technical assistance and will resolve the issue instantly. You can easily get the number in just clicks at Contactforyahoo which is an online customer support directory.