Filter incoming mail from "real name" section of From address.

[Chuck Rock]

Is there a way to filter the mail based on the "real name" part of the address?

I keep getting these stupid MensHealth.com E-mails. The MensHealth.com part is 
not in the actual E-mail address though.

Such as: MensHealth.com [bill at fred.com]

I'm not using SpamAssassin, just MailScanner with antivirus.

I was hoping for a rule-set or something to tweak for these.

Thanks,
Chuck