I received the first notification 4 months ago in Google Webmaster Tools regarding a clients website and it’s unnatural inbound links:
Now, I was pretty well up-to-speed with these notifications because there was a lot a talk at the time of Google sending them out, so I wasn't too worried. But being diligent I checked the site's Google WMT account and yes there was a site sending a vast amount of poor quality links to it, in fact there were a couple of other sites in the same vein.
Now, I was pretty well up-to-speed with these notifications because there was a lot a talk at the time of Google sending them out, so I wasn't too worried. But being diligent I checked the site's Google WMT account and yes there was a site sending a vast amount of poor quality links to it, in fact there were a couple of other sites in the same vein.