I moved my blog to WordPress.com with a custom domain, which means WordPress now manages the DNS. However, my mail forwarding service is still coming from Godaddy. To make this work, I had to add custom DNS records to point to Godaddy’s mail servers, like so:
MX 10 mailstore1.secureserver.net.
MX 0 smtp.secureserver.net.
Don’t forget the period at the end of each line.