[sympa-fr] pb with bounces messages ownership

[<adresse@cachée>]

Hi, Bonjour

I have installed sympa ( 5.3.3) with postfix successfully. Everything works
fine excepts the bounce management.

bounce messages are picked up by postfix ok but are moved to the sympa spool
with the wrong ownership (nobody instead of sympa)

Bounces messages are distributed to the sympa spool with the wrong ownership :
/var/log/messages :
 bounced[14889]: Could not open
/adresse@cachée:
Permission denied

ls /home/sympa/spool/bounce/  -al
total 36
drwxrwxrwx 15 sympa  sympa  4096 2007-11-01 11:57 ..
-rw-------  1 nobody nobody 4065 2007-11-21 16:48
adresse@cachée

message distribution, subscription, unsubscription, everything is ok except
bounce management.

An idea anybody?

Thank you 

Olivier RICHE