[Dovecot] mbox File too large error

[Nicolas KOWALSKI]

Hello,

I have a rather large (~400MB) INBOX file in mbox format. When using 
deliver, it complains in the logs:

Dec  2 16:47:13 petole deliver(niko): write() failed with mbox file /home/niko/mail/INBOX: File too large

I do not see anything related in the configuration. And ulimit shows 
nothing special:

$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
max nice                        (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) unlimited
max locked memory       (kbytes, -l) unlimited
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) unlimited
max rt priority                 (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) unlimited
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited


This is with dovecot 1.0.8, sieve plugin 1.0.2:

# dovecot -n
# 1.0.8: /usr/local/etc/dovecot.conf
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
mail_location: mbox:~/mail:INBOX=~/mail/INBOX
mbox_write_locks: fcntl
auth default:
  passdb:
    driver: pam
  userdb:
    driver: passwd


What can I do to be able to deliver to large mbox files ?

Thanks,
-- 
Nicolas