Got this in the inbox today, seems my account information "are out of date".
Due to the congestion in our servers, We have come to realize that your account information on our database system are out of date, as a result of that we require you to verify your Information. Failure to verify your information will result in account suspension. If you are still interested in using our email service, Please click the reply button and fill the below spaces as requested. Learn more
Note: As part of our security measures, your account will not be interrupted and your email service will continue to work as normal.
Thank you for using Gmail !
The Gmail Team