Have you ever gotten a bounce after sending an email from Gmail with a 69585 bounce code that references a URL? You might notice that the URL that Gmail gives for more information about the 69585 bounce is a broken URL. In fact, it redirects to a webpage that has nothing to do with the 69585 bounce:

https://support.google.com/mail/answer/6596?visit_id=1-636469950368928843-4158290028&rd=1

It doesn't explain the 69585 bounce at all. So what's the deal? We're not sure why Google removed the explanation page for the 69585 bounce code, but in the past, it meant that Google blocked the email on its way out of Google's network. The email never reached the server for the particular email address. Whereas most blocks are blocked by the receiver, a 69585 bounce is a preemptive block by Google, because they think the email you're trying to send is spam.

Surprisingly, there's almost no good information on the web about this bounce code.