Vendors and enterprises alike are faced with a new email threat landscape, where spam is increasingly laced with malware and targeted attacks have become more common. IT pros have a lot to consider--both in terms of technology and best practices--as they deal with <A HREF="http://www.eweek.com/c/a/Security/The-Growing-EMail-Security-Challenge/">the growing email security challenge.</A> How do you take control of email--ruthlessly or humanely?