FP: smithbarney.com
This is a part of CitiBank, a MAJOR financial institution. Shows up in the "SC" part of SURBL.
I don't know if they spam or not, but this definitely should be white-listed ASAP. I'm embarrassed to tell a client of mine that THIS was the domain that caused some of his legitimate mail to get blocked.
I searched for smithbarney.com on NANAS and, at a glance, I think most of these NANAS hits are phishing e-mails.
Rob McEwen