NOTON MISSPELLING in a message; REAL?

I am seeing what looks like a real Norton message, but there is a misspelling in it.  Is it really Norton's or not?  NOTE the word "NOTON"

And if it is a spam/malware/virus, why is my real Norton not catching it?

"Search and shop safely with Norton...

For a limited time, Norton Safe Search users with the Noton Toolbar..."