If you see something like this in your mail. It is a scam by crooked foreign powers.
Dear Gmail User,
The Gmail infrastructure is going through an annual security and performance overhaul.
In this respect, you are requested to verify your account by clicking on the following link and login.
The Google Security Team is available to provide you all the assistance for secure communication over the Internet.
You are requested to act on this immediately to guarantee the smooth functioning of your mail account.
Account Security Administrator
Google Security Team
Phone: +1 650-253-0000