Lisa Brown
Why is Yahoo not sending emails?
The outbox could be a temporary folder that holds your outgoing emails until they'll be sent. If there is any problem sending the message, it stumbles in there. You'll be able to either delete the e-mail or do all one can and resolve the problem of Yahoo not sending emails, causing the e-mail not to send. If the message is there in your outbox despite your cellular data being active, it's an app problem instead of a network problem.