error when sending mail to mailman list

[zeki79]

hello
i get this when i send a mail to a mailing list, any ideas?

Traceback (most recent call last):
File "/usr/lib/mailman/scripts/post", line 69, in ?
main()
File "/usr/lib/mailman/scripts/post", line 64, in main
tolist=1, _plaintext=1)
File "/usr/lib/mailman/Mailman/Queue/Switchboard.py", line 126, in enqueue
fp = open(tmpfile, 'w')
IOError: [Errno 13] Permission denied: '/var/spool/mailman/in/1227559724.0139301+9938a2b9038fe98f5917aa64439719e7ebe93982.pck.tmp'

here the permissions:

[root@star ~]# cd /var/spool
[root@star spool]# ll
insgesamt 100
drwxr-xr-x 2 root root 4096 21. Sep 2006 anacron
drwx------ 3 daemon daemon 4096 31. Jan 2008 at
drwxrwx--- 2 smmsp smmsp 4096 25. Jul 15:24 clientmqueue
drwx------ 2 root root 4096 24. Nov 21:04 cron
drwx--x--- 3 root sys 4096 14. Okt 16:50 cups
drwxr-xr-x 2 root root 4096 22. Feb 2005 lpd
drwxrwxr-x 2 root mail 4096 1. Okt 2007 mail
drwxrwsr-x 11 root mailman 4096 17. Nov 2007 mailman
drwx------ 2 root mail 4096 25. Jul 15:24 mqueue
drwxr-xr-x 5 sma clamav 4096 4. Okt 2007 qscan
drwxr-xr-x 2 rpm rpm 4096 25. Jul 22:49 repackage
drwxrwxrwt 2 root root 4096 25. Jul 23:34 samba
drwxr-xr-x 2 root root 4096 25. Jul 09:07 up2date
drwxrwxrwt 3 root root 4096 22. Feb 2008 vbox
[root@star spool]# cd mailman
[root@star mailman]# ll
insgesamt 36
drwxrws--- 2 mailman mailman 4096 8. Mär 2008 archive
drwxrws--- 2 mailman mailman 4096 22. Jan 2008 bounces
drwxrws--- 2 mailman mailman 4096 30. Nov 2007 commands
drwxrwx--- 2 mailman mailman 4096 5. Nov 23:12 in
drwxrws--- 2 mailman mailman 4096 21. Sep 2006 news
drwxrws--- 2 mailman mailman 4096 24. Nov 08:00 out
drwxrws--- 2 mailman mailman 4096 2. Jul 08:20 retry
drwxrws--- 2 mailman mailman 4096 12. Jan 2007 shunt
drwxrws--- 2 mailman mailman 4096 24. Nov 08:00 virgin
[root@star mailman]#


thanks for any tips
zeki