The only thing that you need to do to avoid creating files in traditional UNIX format is to change CREATEPROTO.
By setting EMPTYPROTO to mbx, you introduce a bug into imapd. Empty files can not be in mbx format, so what will happen is that you'll get an obscure error message (such as "indeterminate mailbox format"). -- Mark -- http://staff.washington.edu/mrc Science does not emerge from voting, party politics, or public debate. Si vis pacem, para bellum.
