If you've been given an invite directly from Google, you can do this to extend more invites. If you got an invite from someone else, this wont work.Note: I'm not sure exactly how I did it - but when logging into the wife's gmail on my phone after enabling Inbox on my main email address, it immediately tossed her gmail an invite. So for those of you that have a close friend that you'd trust with your gmail login a few, that might be a quick way in to play with potentially.
Mine didn't come directly from Google - I was the lucky winner for Mageling's earlier. Again though, not sure what I did - was just logging on her account to download a paid app and saw the email pop telling her "Welcome to Google Inbox".If you've been given an invite directly from Google, you can do this to extend more invites. If you got an invite from someone else, this wont work.
Not google but:Earth Class MailMaybe I'm not popular enough but I get ~5 emails a day I care about.
Now if google had a service where I could have all my real mail scanned in and emailed to me and the paper waste recycled (or burned instead stores that send out prolific amounts of junk mail) I'd use it!