Is it spam?

I have received an email asking me to click on a link regarding "Norton™ Virus Protection Promise*. " it is from Norton <norton@nortonfromsymantec.com>.

Just a bit wary as to whether this is genuine?

Doesn't seem to be a Norton contact address to forward such emails for verification.

The Outlook document is too large to attach to this.

Anyone know or how can this be verified easily.