We couldn't find any record that lets other domains on the Internet know where to deliver email for domain '{0}'. You have ...

We couldn't find any record that lets other domains on the Internet know where to deliver email for domain '{0}'. You have to create a specific entry in DNS so that email gets delivered. The missing record is type MX. Click on the link 'get help fixing this issue' in the actions pane located on the right side of the screen for assistance.