E-mail not working for johndugan@covad.net

Task 'Synchronizing subscribed folders for johndugan@comcast.net.' reported error (0x800CCC05) : 'Outlook cannot synchronize subscribed folders for johndugan@comcast.net. Error: Outlook cannot synchronize subscribed folders for johndugan@comcast.net. Error: . If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'