Google has confirmed that the issue causing duplicate emails to be received has been resolved.
We are aware of an issue where emails are being received in duplicate. We have contacted Google support to resolve the problem.
Google is investigating an issue with Google Drive. Updates will be available at http://www.google.com/appsstatus#hl=en&v=status.
Please be aware that another spam email has been sent around claiming you need to validate your email. If you filled in this email you need to contact the helpdesk immediately and you need to change your password right away.
Please be advised that a new round of scam/phishing emails has been circulating this morning. This particular message contains sender and subject information similar to the following:
Please disregard and delete this email, and DO NOT click on links within the message or reply with any information.