Nick Hilliard (nick@iol.ie) said, on [990929 13:54]:
If you need to have text-based NFS-mounted client mailboxes, the only reliable option is to use a mailbox format which doesn't require locking, such as Maildir.
Amen. The only thing I've ever seen that didn't immediately give me the willies is:
http://www.earthlink.com/about/papers/mailarch.html