I'm a registered, paid-up Norton 360 user, so as you might expect Norton do have my email address.
I've had a communication from them which looks legitimate, but I've only been with them three months, so don't yet know what is "normal".
Basically, the email is inviting me to "click to update" to a newer software version - Norton 2013. I thought I was subscribed to auto-update, so I'm a bit suspicious of a "click here to get it" email, especially as there haven't been any previously.
But Googling suggests there has indeed been a major project launch, so the facts fit...
I just don't know enough to confirm it's genuine.
Have other Norton users received similar? Did you act on it, and was everything OK?