[Mailman-Users] Mailman gid problem

[David Southwell]

/usr/local/share/doc/mailman/mailman-install.txt

6.1.1 Integrating Postfix and Mailman
.
.
* When you configure Mailman, use the --with-mail-gid=mailman
       switch; this will be the default if you configured Mailman after
       adding the mailman owner. Because the owner of the aliases.db file
       is mailman, Postfix will execute Mailman's wrapper program as uid
       and gid mailman.
_______________________________
Extract  from my mm_cfg.py
add_virtualhost('www.vizion2000.net', 'vizion2000.net')
add_virtualhost('www.atf4.com', 'atf4.com')
add_virtualhost('www.methuselaproject.org', 'methuselaproject.org')
add_virtualhost('www.methuselaproject.com', 'methuselaproject.com')
add_virtualhost('www.ispyforum.com', 'ispyforum.com')
add_virtualhost('www.workplacemassage.co.uk', 'workplacemassage.co.uk')
POSTFIX_STYLE_VIRTUAL_DOMAINS = ['atf4.com', 
'vizion2000.net', 
'methuselaproject.org', 
'methuselaproject.com', 
'ispyforum.com', 
'workplacemassage.co.uk',
]
MTA ='Postfix'
SMTPHOST = 'dns1.vizion2000.net'
___________________________________
Extract from /var/maillog
Apr 20 08:24:58 dns1 Mailman mail-wrapper: Group mismatch error.  Mailman 
expected the mail wrapper script to be executed as group "nobody", but the 
system's mail server executed the mail script as group "mailman".  Try 
tweaking the mail server to run the script as group "nobody", or re-run 
configure,  providing the command line option `--with-mail-gid=mailman'.
Apr 20 08:24:58 dns1 postfix/local[23091]: A271B1CC47: 
to=<hanhamphoto at vizion2000.net>, orig_to=<hanhamphoto at atf4.com>, relay=local, 
delay=526, delays=526/0.02/0/0.01, dsn=4.3.0, status=SOFTBOUNCE (Command died 
with status 2: "/usr/local/mailman/mail/mailman post hanhamphoto". Command 
output: Group mismatch error.  Mailman expected the mail wrapper script to be 
executed as group "nobody", but the system's mail server executed the mail 
script as group "mailman".  Try tweaking the mail server to run the script as 
group "nobody", or re-run configure,  providing the command line option 
`--with-mail-gid=mailman'. )
Apr 20 08:26:23 dns1 postfix/anvil[23079]: statistics: max connection rate 
1/60s for (smtp:168.100.1.7) at Apr 20 08:23:03
__________________________________________________

I have tried to rebuild mailman BUT the configuration option screen does not 
appear. I have tried 
# make with-mail-gid=mailman
but still get the same results
#./configure --with-mail-gid=mailman 
is not available 
There seems that mailman does not keep a record of relevant configuration 
setting and the  command to extract current settings for mailman  
bin/config_list does not report this setting either.

What should I be doing here?

Thanks in advance
david