Migration: INBOX^Trash & friends

[Chris Pepper]

	I have 'www', a Mac OS X 10.4 Server system, running Apple's build of 
Cyrus, and want to move my mail over to 'pe', a CentOS 5.1 system 
running CentOS 5.1's cyrus-imapd-2.3.7-1.1.el5.rpm (derived from Simon 
Matter's Invoca RPM). I would very much like to rsync the mail over and 
(when ready) change the hostnames and have email clients not notice the 
difference. In particular, if Eudora decides the mailbox layout has 
changed, it will reysnc all mail and lose much of its status 
information, so I want to avoid this if possible.

	I'm getting hung up on a directory naming discrepancy I don't 
understand. Any guidance on where the discrepancy originates will be 
much appreciated.

	On the Mac, pepper's top-level directory structure looks like this 
(folders, not files):

> www:~ root# ls -d /var/spool/imap/user/pepper/*/
> /var/spool/imap/user/pepper/Deleted Messages/
> /var/spool/imap/user/pepper/Drafts/
> /var/spool/imap/user/pepper/JUNK.20061225/
> /var/spool/imap/user/pepper/Junk/
> /var/spool/imap/user/pepper/Sent Messages/
> /var/spool/imap/user/pepper/Sent/
> /var/spool/imap/user/pepper/Trash/
> /var/spool/imap/user/pepper/bulk/
> /var/spool/imap/user/pepper/company-archive/
> /var/spool/imap/user/pepper/company/
> /var/spool/imap/user/pepper/debevoise/
> /var/spool/imap/user/pepper/debevoise2/
> /var/spool/imap/user/pepper/frb/
> /var/spool/imap/user/pepper/goldman-sachs/
> /var/spool/imap/user/pepper/hh2005/
> /var/spool/imap/user/pepper/hh2006/
> /var/spool/imap/user/pepper/hh2007/
> /var/spool/imap/user/pepper/hts^20060328^txt/
> /var/spool/imap/user/pepper/info-mac/
> /var/spool/imap/user/pepper/keepers-archive/
> /var/spool/imap/user/pepper/list-archive/
> /var/spool/imap/user/pepper/list/
> /var/spool/imap/user/pepper/macworld-expo/
> /var/spool/imap/user/pepper/mail/
> /var/spool/imap/user/pepper/misc/
> /var/spool/imap/user/pepper/people-archive/
> /var/spool/imap/user/pepper/people/
> /var/spool/imap/user/pepper/pepper^development/
> /var/spool/imap/user/pepper/reppep/
> /var/spool/imap/user/pepper/reppep^com/
> /var/spool/imap/user/pepper/ru-archive/
> /var/spool/imap/user/pepper/ru/
> /var/spool/imap/user/pepper/scratch/
> /var/spool/imap/user/pepper/tidbits-archive/
> /var/spool/imap/user/pepper/tidbits/
> /var/spool/imap/user/pepper/writing/

	On the Linux system, pepper's top-level directory structure looks like 
this:

> [root at pe imap]# ls -l /var/spool/imap/user/pepper/
> total 40
> -rw------- 1 cyrus mail    4 Jan  5 17:37 cyrus.cache
> -rw------- 1 cyrus mail  154 Jan  5 17:36 cyrus.header
> -rw------- 1 cyrus mail   96 Jan  5 17:37 cyrus.index
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 Drafts
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 hh2007
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 INBOX^Drafts
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 INBOX^Sent
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 INBOX^Trash
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 Sent
> drwx------ 2 cyrus mail 4096 Jan  5 17:36 Trash

	I have Cyrus set to auto-create "Trash | Sent | Junk", and that's 
working, but I don't understand why they are prefixed by "INBOX^". I 
tried renaming the folders to simply 'Drafts', 'Sent', and 'Trash' and 
reconstructing, and imapd re-created the INBOX^* files to match the 
contents of mailboxes.db.

	So what causes the discrepancy? I don't know if there's a configuration 
setting I missed, or a compilation option that Apple changed, but I have 
verified that both systems have "altnamespace: yes" and 
"unixhierarchysep: yes".


						Thanks,


						Chris Pepper
PS-I'm sorry if this is a FAQ. I've read all the docs I could find under 
<http://cyrusimap.web.cmu.edu/imapd/>, and Google doesn't ignores '^', 
so I'm having no luck at tracking this down.
-- 
Chris Pepper:                <http://www.reppep.com/~pepper/>
                              <http://www.extrapepperoni.com/>
The Rockefeller University:  <http://www.rockefeller.edu/>