If Microsoft Outlook throws up a Send/Receive error with error code 0x8004102A, then you need to take a look at THESE settings.

Does the Outlook error 0x800CCC90 pop up every time you try to Send/Recieve an email? If yes, read this post for the resolution.

I Cannot Send Email in Office Outlook. If you encounter any errors while attempting to send email messages from Microsoft Outlook 2013, the problem most likely lies with either your Internet ...