I created an unbutu split-dns setup walk through. I'd love to get some feedback on if it's accurate, if it could be made better or more robust.

digitalmanor.pbwiki.org

I'm looking for some feedback on where I could host this other than at the PBWiki site. Anyone who would like is free to make edits which would improve it.

Also, I haven't installed Zimbra on top of it yet. My goal is a zimbra install behind a home firewall, with dyndns & mailhop services. (I had this working with Exchange...) Any input or desire to help with a second wiki section?