[Exim] Follow up to..

I have been able to NFS mount the /var/mail dir from one of my machines to
the other, I thought that might be a solution untill my DNS MX records
propigate, but there seems to be an issue. I did read in some older posts
that there MAY be (is this true?) and issue with NFS and mbox.

Any possible suggestions? I'm between a bit of a rock and a hard place for
a little while on this one.