Gmail will dump emails from google.com into my spam folder if I have them forwarded from another gmail account. It is infuriating that they can't even solve thi

Gmail will dump emails from google.com into my spam folder if I have them forwarded from another gmail account. It is infuriating that they can't even solve this problem within their own domain. Example of a message from Google, to a custom domain gmail account, forwarded to another custom domain gmail account — found in my spam folder: https://www.dropbox.com/s/uwxjdji8n6g6jfo/Screenshot%202015-03-05%2012.00.31.png?dl=0 https://www.dropbox.com/s/uwxjdji8n6g6jfo/Screenshot%202015-...