[Mailman-Users] mailman sendmail error

[Merle Reine]

I get the following in /var/log/mail when trying to send to 
staff at lfriendly.com: 

Sep  6 00:23:30 mail postfix/qmgr[5425]: 670D71159B: 
from=<merle.reine at lindows.com>, size=584, nrcpt=1 (queue active)
Sep  6 00:23:30 mail Mailman mail-wrapper: Failure to exec script. WANTED 
gid 65534, GOT gid 65533.  (Reconfigure to take 65533?)
Sep  6 00:23:30 mail postfix/local[5835]: 670D71159B: 
to=<staff at lfriendly.com>, relay=local, delay=0, status=bounced (Command died 
with status 2: "/usr/lib/mailman/mail/wrapper post staff". Command output: 
Failure to exec script. WANTED gid 65534, GOT gid 65533.  (Reconfigure to 
take 65533?) ) 

I have the aliases setup in /etc/aliases, ran newaliases, postfix reload.  
This is on a SuSe Open Exchange box and Mailman installed from the RPM. 

Mailman Version:  2.0.13