[Mailman-Users] Mail delivery fails with "(-2, 'Name or service not known')"

[noc at windowslinux.net]

Hi,

I'm in trouble. I've read the FAQ and everything about it on mailman site.

My problem is described in the FAQ (6.14) :
http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq06.014.htp

I see these log entries in smtp-failure:
  Dec 22 21:03:29 2004 (1060) delivery to igueths at lava-net.com failed  
with code -1: (-2, 'Name or service not known')
  Dec 22 21:18:32 2004 (1060) Low level smtp error: (-2, 'Name or  
service not known'), msgid:  
<mailman.0.1103765581.1052.mailman at lava-net.com>
  Dec 22 21:18:32 2004 (1060) delivery to igueths at lava-net.com failed  
with code -1: (-2, 'Name or service not known').

This python script :
  >>> import smtplib
  >>> connection = smtplib.SMTP()
  >>>

didn't return any error to me... So I've look in my resolv.conf file.


My resolv.conf look like this :

search domainname.com
nameserver 193.24.123.123

but my computer name is "ns50.domainname.com". Should I have  
"domainname.com" in resolv.conf or "ns50.domainanme.com" ?

I've tried that in python shell :
>>> import socket
>>> x = socket.gethostname()
>>> print x
ns50.domainname.com
>>> y = socket.gethostbyname(x)
>>> print y
127.0.0.1

So i've aded "nameserver 127.0.0.1" to my resolv.conf . I've rebooted  
this computer and restarted mailman daemon.

But the problem is always here ...

When I try to access to python shell with mailman user ( @#" su  
mailman ") I've got a error :
"This account is currently not available."

So I can't test this python shell script with mailman user ...

I've look my /etc/hosts, I think it's world readable :
[root at ns50 ~]# ls -lah /etc/hosts
-rw-r--r-- 1 root root 135 Feb  2 16:21 /etc/hosts


What should I do ?
Any tips ?

I have this problem since two week from now ... and I can't see how to  
solve that :(

Thanks you if you have a tips !