[Dovecot] fchown() failed

[Arthur Dent]

Hello all,

I'm not sure if this question is better posed to a Fedora group because
I have only had this problem since I upgraded from F9 to F11, but I
figured that the specialised knowledge here might help me more...

I have been getting these entries in syslog since upgrading. Today for
instance I got:

 **Unmatched Entries**
    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)
    dovecot: IMAP(mark): fchown() failed with file /home/mark/Mail/.imap/INBOX/dovecot.index.tmp: Operation not permitted: 1 Time(s)

and yesterday I had:

 **Unmatched Entries**
    dovecot: IMAP(helena): fchown() failed with file /home/wife/mail/.imap/INBOX/dovecot.index.tmp: Operation not permitted: 1 Time(s)
    dovecot: IMAP(toby): fchown() failed with file /home/son/mail/.imap/INBOX/dovecot.index.cache.lock: Operation not permitted: 1 Time(s)
    dovecot: IMAP(toby): fchown() failed with file /home/son/mail/.imap/INBOX/dovecot.index.log.newlock: Operation not permitted: 1 Time(s)
    dovecot: IMAP(toby): fchown() failed with file /home/son/mail/.imap/INBOX/dovecot.index.tmp: Operation not permitted: 3 Time(s)

The permissions are as follows:
ls -la /home/mark/Mail/.imap/INBOX/
total 328
drwx------.  2 mark mark   4096 2009-08-18 15:32 .
drwx------. 84 mark mark   4096 2009-03-05 21:53 ..
-rw-------.  1 mark mark   7472 2009-08-18 15:32 dovecot.index
-rw-------.  1 mark mark 286720 2009-08-19 11:46 dovecot.index.cache
-rw-------.  1 mark mark   5380 2009-08-19 12:43 dovecot.index.log

Those of wife and son are similar.

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)?

Any ideas? 

All help / suggestions gratefully received...

Thanks

Mark

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