BCC instead of TO field?

Hello all! Does CC have the ability to address email campaigns to a BCC field instead of the TO field?  At my company, we use distribution lists extensively to send email to many employees and we’d like to be able to address our campaign to, for instance, everyone who works for our company in southern California.  Internally we have a group that can distribute that email appropriately but if Constant Contact sends the initial campaign to SoCalEmployees in the TO field, people who reply will frequently accidently “Reply to all” especially from mobile devices.  To prevent that we’d like the SoCalEmployees to be populated in the BCC field meaning that any reply would only go to the designated reply address. Any ideas?