I'm looking through google webmaster that my page is generating soft 404 errors (https://support.google.com/webmasters/answer/181708?hl=en)
We recommend that you always return a 404 (Not found) or a 410 (Gone) response code in response to a request for a non-existing page
But I've got redirects set up that handle old pages to redirect to the proper new pages using a 301. The website links changed because of a use of a framework, which allows it to be more consistent, but the old pages till have links out there to these.
Should I be worried about this? IS google penalizing the site for this?
(Using IIS 8, Tomcat, CF10, Win)