I've never had this issue before but suddenly since couple days ago, my e-mails are not going out but staying in the Outbox (built-in Mail program). I have two gmail accounts and one work e-mail account set up on the Mail and outgoing e-mail from both gmail and work e-mail account do not go out. I tried to delete all the accounts and set them up again but the same problem still exists. I see the turning gear next to 'Sent' on the left column continuously turning. What could be a reason for this?