I just bought a new desktop computer and installed my old Outlook 2007 on it. I can send emails from my default account, which is an earthlink account. But it won't send emails using my business email associated with my website, which I've been trying to add as a second account on Outlook. My web developer spent an hour today trying to help me set this up in account settings. When I put in the account information in the first box, and I hit Test Account Settings, it says there is an error and it can't send messages on this particular account. What should I do?