I've just found this out the hard way, because I had never checked to see if the domains I had forwarded over a month ago are still pointing to the websites I de-commissioned...I checked their settings under Godaddy and they were both set to "I'm forwarding my domains" with "301 redirect" checked off, to a URL that I had pointed them to....yet, nothing was happening. I had to do an .htaccess 301 redirect. Just wanted to warn anyone who is forwarding domains in Godaddy - you better check to see if it's working!