What do you mean by Outlook error 0x800ccc0d?

The Outlook Error 0x800ccc0d is just a failure to attach - that's within the error message. The 0x800ccc0d error appears after you try to send/receive email messages in Microsoft Outlook. This error usually arises when Outlook cannot determine whether your PC is connected to the Internet or there's a program blocking Outlook's access to the Internet. It may occur in Microsoft Outlook Express. To solve this, you can try disabling your firewall and anti-virus.