[CentOS] sendmail not sending after reboot

[Ray Leventhal]

lingu wrote:
Hi lingu,
Thanks for your reply.
>   Check the below things on your server.
>
> 1) diskspace
df -h shows 253GB free on the LVM which holds mail
>
> 2) mailq
mailq says 'mailqueue is empty'
>
> 3) netstat -ntlp |grep :25 |grep tcp
# netstat -ntlp|grep :25|grep tcp
tcp        0      0 0.0.0.0:25                  
0.0.0.0:*                   LISTEN      12861/sendmail: acc
>
> 4) telnet on  port 25 from server as well as from client
connects with the following, from either server or lan client:
220 gungho.prvnet ESMTP Sendmail 8.13.8/8.13.8; Mon, 9 Jun 2008 09:27:59 
-0400

>
> 5) ps auxxww |grep sendmail
> ###############################################
# ps auxwww|grep sendmail
root     12861  0.0  0.2   8960  1920 ?        Ss   08:42   0:00 
sendmail: accepting connections
smmsp    12869  0.0  0.1   8012  1484 ?        Ss   08:42   0:00 
sendmail: Queue runner at 01:00:00 for /var/spool/clientmqueue
root     13249  0.0  0.0   3892   688 pts/2    S+   09:28   0:00 grep 
sendmail

>
> 5) check maillog properly definitely it will throw some  messages
The only interesting thing here is:
Jun  9 09:10:49 gungho sendmail[13074]: m59D9b47013074: lost input 
channel from [172.16.0.155] to smtp after mail
>
> 6) check /var/log/messages .
>
nothing unusual in the messages file. 
>
>
>   Check  the maillog otherwise increase the sendmail loglevel in the 
> sendmail.mc <http://sendmail.mc> file to 10 and restart sendmail.
>
> Line to be changed in sendmail.mc <http://sendmail.mc> to increase log 
> level.
>
> dnl define(`confLOG_LEVEL', `9')dnl
done.  I'll re-check logs now as well.
>
> Regards
> lingu
Thanks for your suggestions.  I'll reply with status shortly
-Ray