[Dovecot] Occasional fchown errors?

[Knute Johnson]

Hi:

I get the occasional error below.  Is there something I don't have 
configured correctly?  Or should I just ignore this?  It is not always 
this file, sometimes it is the cache.lock file or the log.newlock file. 
  I have a mail client running on my computer and my phone at the same 
time, could that have something to do with it?

Nov 10 08:32:59 rabbitbrush dovecot: IMAP(bob): 
fchown(/home/bob/mail/.imap/INBOX/dovecot.index.tmp, -1, 8(mail)) 
failed: Operation not permitted (egid=1000(bob), group based on 
/var/mail/bob)

 From dovecot -n

# 1.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-25-generic i686 Ubuntu 10.04.1 LTS
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imaps
ssl_cert_file: /etc/ssl/certs/ssl-cert-snakeoil.pem
ssl_key_file: /etc/ssl/private/ssl-cert-snakeoil.key
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/imap-login
mail_privileged_group: mail
mail_location: mbox:~/mail:INBOX=/var/mail/%u
mbox_write_locks: fcntl dotlock
auth default:
   passdb:
     driver: pam
   userdb:
     driver: passwd

Thanks very much,

-- 

Knute Johnson