[CentOS] help me with step to set up sendmail with mailman

[Les Mikesell]

On 10/13/10 9:53 PM, somtob.kaewbowon at cbs.pea.co.th wrote:
> 1. mailman can send message to sendmail
> 2.but sendmail can't send the message to mail list
>
> The original message was received at Thu, 14 Oct 2010 09:41:53 +0700
> from apache at localhost
>
>     ----- The following addresses had permanent fatal errors -----
> somt at cbs.pea.co.th
>      (reason: 550 5.1.1<somt at cbs.pea.co.th>... User unknown)
>      (expanded from: somt at cbs.pea.co.th)
>
>     ----- Transcript of session follows -----
> ... while talking to [127.0.0.1]:
>>>> DATA
> <<<  550 5.1.1<somt at cbs.pea.co.th>... User unknown
> 550 5.1.1 somt at cbs.pea.co.th... User unknown
> <<<  503 5.0.0 Need RCPT (recipient)


It has been a while since I've set up a list, but as I recall, you run the 
'/usr/lib/mailman/bin/newlist' command to create a list and it gives you a list 
of aliases that you have to add to /etc/aliases (and then run 'newaliases') to 
direct inbound messages to the list program.


-- 
   Les Mikesell
    lesmikesell at gmail.com