Yesterday, Google announced that it is now possible to email someone you're following on Google+ without knowing their email address.
Ever wanted to email someone you know, but haven't yet exchanged email addresses? Starting this week, when you're composing a new email, Gmail will suggest your Google+ connections as recipients, even if you haven't exchanged email addresses yet.
This may result in a lot of unsolicited email. Here's how to disable the feature which Google has enabled for many by default.