Spammers will always put an backlink in their spams to get you to visit another website.
Spam! spam! spam! click! click! click! money! money! money!
you could received spams on a daily base with the domain “GoogleApis.com” use as the url backlink…
The domain GoogleApis.com is own by Google!
If you have questions about Google’s spamming business, you can contact Sarah Falvey at firstname.lastname@example.org
Below a few examples of Google’s spams…
Google is also into “insurpation”