On Mon, 2009-08-24 at 15:05 -0400, Timo Sirainen wrote:
On Wed, 2009-08-19 at 13:18 +0100, Arthur Dent wrote:
dovecot: Dovecot v1.2.0 starting up (core dumps disabled): 1 Time(s)
dovecot: IMAP(mark): fchown() failed with file
/home/mark/Mail/.imap/INBOX/dovecot.index.log.newlock: Operation not
permitted: 1 Time(s)
v1.2.3+ would have given a bit better error message here.
Ironically, since I posted my original message last week Fedora issued
an updated Dovecot package, so here is yesterday's message in syslog:
**Unmatched Entries**
dovecot: Dovecot v1.2.3 starting up (core dumps disabled): 1 Time(s)
dovecot: IMAP(helena):
fchown(/home/wife/mail/.imap/INBOX/dovecot.index.cache.lock, -1, 12(mail))
failed: Operation not permitted (egid=501(helena), group based on
/var/mail/helena): 1 Time(s)
dovecot: IMAP(mark): chown(/home/mark/Mail/.imap/INBOX, -1, 12(mail))
failed: Operation not permitted (egid=500(mark), group based on
/var/mail/mark): 1 Time(s)
dovecot: IMAP(mark):
fchown(/home/mark/Mail/.imap/INBOX/dovecot.index.cache.lock, -1, 12(mail))
failed: Operation not permitted (egid=500(mark), group based on
/var/mail/mark): 1 Time(s)
dovecot: IMAP(mark):
fchown(/home/mark/Mail/.imap/INBOX/dovecot.index.log.newlock, -1, 12(mail))
failed: Operation not permitted (egid=500(mark), group based on
/var/mail/mark): 1 Time(s)
dovecot: IMAP(mark): fchown(/home/mark/Mail/.imap/INBOX/dovecot.index.tmp,
-1, 12(mail)) failed: Operation not permitted (egid=500(mark), group based on
/var/mail/mark): 1 Time(s)
dovecot: IMAP(mark): mkdir(/home/mark/Mail/.imap/INBOX) failed: Operation
not permitted: 1 Time(s)
Anyway the issue is that nowadays Dovecot tries to preserve mailbox's
permissions
so that shared mailboxes work properly. What permissions do you have in
the actual INBOX file?
ls -la /var/mail/
total 202024
drwxrwxr-x. 2 root mail 4096 2009-08-26 10:30 .
drwxr-xr-x. 15 root root 4096 2009-08-13 12:35 ..
-rw-rw. 1 clamav mail 0 2009-08-12 12:40 clamav
-rw-rw. 1 wife mail 190669010 2009-08-26 10:00 wife
-rw-rw. 1 mark mail 8421931 2009-08-26 09:46 mark
-rw---. 1 root root787636 2009-08-26 10:30 root
-rw-rw. 1 rpcmail 0 2009-08-11 16:26 rpc
-rw-rw. 1 sonmail 6750285 2009-08-26 00:39 son
My guess is that you have 0660 permissions of /var/mail/$USER so Dovecot
tries to preserve the group. Easiest fix that also makes your system
more secure is to chmod 0600 it.
Hmmm - OK, seems you're right about that. Will changing it break
anything else? Why does group mail exist?
I will try chmod 0600 and see what happens.
As I access my mailbox several times a day (and certainly did yesterday)
from several different mail clients I am surprised that the error count
is only 1 for most the above entries. Is this being caused by some sort
of cron job (logrotate perhaps)?
It happens only when index files are being created/rotated, which
happens automatically every once in a while.
Thanks very much. Your help is greatly appreciated...
Mark
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