[Dovecot] imap-login problem

["M. Tolga Özses"]

dovecot: Oct 05 16:03:07 Info: imap-login: Login: user=<kartagis>, 
method=plain, rip=212.98.201.1, lip=192.168.1.2
dovecot: Oct 05 16:03:07 Error: IMAP(kartagis): 
open(/var/mail/.temp.kunduz.org.14095.855b9feb950c2c78) failed: 
Permission denied
dovecot: Oct 05 16:03:07 Error: IMAP(kartagis): file_lock_dotlock() 
failed with mbox file /var/mail/kartagis: Permission denied

Hi,

I get these when I attempt to check my mail. Any ideas?

Regards and thanks,

-- 
M. Tolga Özses
Bilgi Teknolojisi
Sabanci Üniversitesi
Orhanli 34956 Tuzla
Istanbul
Tel: (216) 483 91 98
Web: http://people.sabanciuniv.edu/mtozses