The 'c-67-165-64-78.client.comcast.net' just before *.go.com is some random broadband machine, making it almost certain that this is spam and all prior Received: headers are bogus.

Congrats! I only get spam in Russian and Chinese (apart from English). (I suppose it's possible that the Russian spam is actually Azeri or something written in koi8-r with some weirdo conventions for this missing letters, since I've never actually looked at its contents.)