My single Exch 2003 server currently uses a "smarthost" on the default SMTP virtual server. This is an outsourced virus/spam scanning service that also adds a corporate disclaimer. However, I'd like for some users to be able to bypass that smarthost for listerv messages and the like. I used to be able to designate routing on a per-domain basis in Exch 5.5...is there similar functionality in 2003? If I use another SMTP virtual server for this, how do I ensure that only designated senders use it while everyone else uses the default? Thanks!