[cobalt-users] SMTP shutting down

[John MacDonald <jmacdonald@xxxxxxxxxxxxxxx>]

> For the second time today I received the 
following mail from the server:
>
> * There is a severe problem with the email 
system.> A couple of minutes 
> after that, I receive a message that the SMTP
> server is up again.
> There are only 2 customers (40 users in total) 
that use this
> server as their
> outgoing mailserver.
> The message was sent to me for the first time 
after I added the DNSBL
> entries (working fine) from a thread on this 
list a week ago or so.
> The raq550 is also equipped with 
MailScanner/SpamAssassin/ClamAV.
> The spam was reduced once I had those DNSBL 
entries in my
> sendmail.cf. I see
> a lot of blocked/rejected messages in the logs 
so I would think that the
> load on Mailscanner/SpamA. should be less.

I had the exact same thing happen when I added 
the dnsbl list... it was
on the weekend though so I didn't get around to 
checking loads at the time 
of failure.  It only happened twice before I had 
to revert to the 
original sendmail.  I tested smtp by sending mail 
to myself
and it worked OK but on Monday when users tried 
sending mail
to anybody but themselves, they got a relaying 
denied message
citing the recieving address (!) as failing the 
IP lookup (pop b4 SMTP).
Anyway, all that to say, the problem disappeared 
after I reverted. I
definately do not have any unkown heavy processes 
running (99%idle)  so 
I would love to know if getting rid of that 
unkown httpd 
solves your problem.  Please keep me updated.  
Thanks.

John