There are mainly 4 groups of files used in openwebmail.

1. cgi-bin/openwebmail/         cgi scripts/configurations/languages/templates
2. data/openwebmail/            background/icons/image/sounds
3. ~user/mail/                  user folder files/indexes
4. /etc/mail/virtusertable      virtual user mapping table


data/openwebmail/               mapping to url http://your_site/openwebmail/
------------------------------
doc/                            text document for openwebmail
help/				openwebmail tutorial of various languages
images/                         runtime image/background/icons
javascript/			runtime javascripts
sounds/                         various YouHaveMail sound files
applet/                         directory for runtime javaapplet
openwebmail.html
redirect.html
index.html -> openwebmail.html

javascript/htmlarea			HTMLArea editor 3.0
javascript/htmlarea.openwebmail		HTMLArea editor 3.0 customized for oepnwebmail
javascript/htmlarea.openwebmail/popups	lang and html file of popup windows in
					htmlarea editor for different languages


cgi-bin/openwebmail/            mapping to url http://your_site/cgi-bin/openwebmail
------------------------------
etc/                            configuraation, template, language, temporary files
auth/				place for auth_xxx.pl modules
				routines/variables in these files belong to ow::auth_xxx::
quota/				place for quota_xxx.pl modules
				routines/variables in these files belong to ow::quota_xxx::
modules/			place for module files
				routines/variables in these files belong to packages other than main::
shares/				place for shared routines files
				routines/variables in these files belong to main::				
uty/                            debug uty or tool used by sysadm

openwebmail-abook.pl            CGI programs of openwebmail
openwebmail-advsearch.pl
openwebmail-cal.pl
openwebmail-folder.pl
openwebmail-main.pl
openwebmail-prefs.pl
openwebmail-read.pl
openwebmail-send.pl
openwebmail-spell.pl
openwebmail-vdomain.pl
openwebmail-viewatt.pl
openwebmail-webdisk.pl
openwebmail.pl

openwebmail-tool.pl             command tool of openwebmail
preload.pl                      preload uty for both CGI and command line
userstat.pl			user status utility for static html pages
vacation.pl                     vacation utility for auto reply


/usr/local/www/cgi-bin/etc/
------------------------------
openwebmail.conf                customized configuration file
openwebmail.conf.default        default configuration file
openwebmail.conf.help           help for default configuration file

dbm.conf.default		default config file for dbm.pl
suid.conf.default		default config file for suid.pl
filelock.conf.default		default config file for filelock.pl
smtpauth.conf                   file to store username/passwd for SMTP auth

auth_xxx.conf.default		default config file for auth_xxx.pl
auth_xxx.conf			customized config file for auth_xxx.pl

styles/                         various CSS files
lang/                           translation files for various languages
templates/                      template files for various languages
holidays/                       holidays calendar for various languages
sites.conf/                     configuration file for different virtual domain
users.conf/                     configuration file for different user
users/                          user directories (used only if use_syshomedir disabled)
sessions/                       directory to store temporary session files

address.book                    global address book
calendar.book                   global calendar book
filter.book                     global filter book

b2g.map                         Chinese Big5 to GB charset mapping file
g2b.map                         Chinese GB to Big5 charset mapping file
lunar.map                       Chinese lunar calendar mapping file

b2g.db                          index db of b2g.map
g2b.db                          index db of g2b.map
lunar.db                        index db of lunar.map

etc.mail.virtusertable.db       index db of /etc/mail/virtusertable
etc.mail.virtusertable.rev.db   reverse index db of /etc/mail/virtusertable


for each USER
------------------------------
~USER/.openwebmail/             store openwebmail internal files
   openwebmailrc                openwebmail user preference
   release.date                 the release date of openwebmail which user used
   history.log                  openwebmail user log file

~USER/.openwebmail/db/		location for mail folder index db and messageid cache file
   (for each foldername...)
   foldername.db                the index db of the folder file
   foldername.cache             messageid cache

~USER/.openwebmail/webmail/	location for webmail internal file
   signature                    signature file if ~USER/.signature doesn't exist
   from.book                    from address book
   address.book                 address book
   stationery.book              stationery book
   filter.book                  personal filter rule book
   filter.book.db               db to store filtering count/date of filter rules
   filter.check                 file that marked the last INBOX filting dat
   trash.check                  file that marked the last trash-cleaning date
   search.cache                 cache file to store last search result
				
~USER/.openwebmail/webcal/	location for webmail internal file
   calendar.book                calendar book
   notify.check                 file that marked the last calendar email notification check date

~USER/.openwebmail/webdisk/	location for webdisk internal file
   webdisk.cache                cache file to store last webdisk search result

~USER/.openwebmail/pop3/	location for pop3 book and uidl database
   authpop3.book                pop3 book for pop3 auth server
   pop3.book                    pop3 book
   pop3.check                   file that marked the last pop3 retrieval date
   
~USER/.forward                  mail forwarding file
~USER/.vacation.msg             text for auto reply
~USER/.vacation.db              db for autoreply history log
~USER/.signature                signature file
~USER/.ispell_words             personal dict for ispell
~USER/.aspell.en.xxx            personal dict for aspell


other files accessed by openwebmail
-----------------------------------
/etc/mail/virtusertable         virtual user mapping file
/var/mail/USER                  INBOX for the USER
/var/log/openwebmail.log        openwebmail system log file