Google introduced three new features late Tuesday that it claims will inform users of the origins of certain emails so they can protect themselves from social engineering and phishing attacks. The new features are designed to expose the real source of e-mail addresses and alert users to suspicious messages that may contain malicious attachments or links. Gmail will now disclose when messages have been sent through forwarding services, such as those that power Share this features on many Web sites. The company has made minor modifications to the operation of its Gmail Webmail service to accomplish this.
Source: https://threatpost.com/gmail-implements-new-features-help-curb-phishing-062911/75382/