mwilliams they will never do. that is not how grommunio works. grommunio stores its groupware data under /var/lib/gromox and is entirely different from maildir of mbox format. to import from those its rather recommended to use some migration tool to get them in via pop3 or imap
mwilliams noplan Yes, since grommunio Web is based on the web client which they seem to have forked from Zarafa, the name for the grommunio Web user settings file is called zarafa.dat in the profile of the user. Please note that there have been numerous additions and changes in grommunio Web for operation with grommunio.