Okay, I have very limited knowledge on this and am needing big help. Right now we have echange 5.5 running on nt server.. we have external email hosted by epix. the company just split into 2 parts, one part is going to stay as is. but the new compay is going to be different. I already went and registered a domain name and I now want to host our own email for the the new company on the same server, while the other company still gets its email through epix. What would be the simplest way for me to do this and please put it to simple terms.