From the Official Gmail Blog:
Have you ever started typing an email to someone only to realize halfway through the draft that you haven’t actually exchanged email addresses? If you are nodding your head ‘yes’ and already have a Google+ profile, then you’re in luck, because now it’s easier for people using Gmail and Google+ to connect over email.
Wait, what did he say?
The post continues:
Your email address isn’t visible to a Google+ connection unless you send that person an email, and likewise, that person’s email address isn’t visible to you unless they send you an email.
The problem with this latest move by google is that users are automatically opted in to this feature. It’s time to opt out and hoped that it would send Google a message.
By the way, Gmail users should be getting the notifications on their Gmail.
