Re: [cobalt-users] Traceroute problem

[Dmitry Alexeyev <dmi_a@xxxxxxxxxx>]

Hello! 

1) sendmail refuses to work if load averages is too high, and that may 
cause problems, cause load averages is accumulated. You can see it by 
running `ps auxwe' and see "sendmail: Rejecting connections" instead of 
"Accepting connections on port 25". It's a shoot in the dark, I do not 
know if your sendmail version supports that.
You can see load averages with `uptime' command. 

2) Have a look into mail queue to see how much mails are queued and not 
yet delivered by command `mqueue'

If the load averages it too high, the one solution that I know is to 
reboot the machine. 

If the mqueue became too bug, the you have to stop sendmail, and 
manually clear the unneeded mails from the queue. 

But, the first thing you must do is to watch the logs. 
Run `tail -100f /var/log/maillog' and is if there are any error 
messages.
 
Best Regards,
Dmitry

> Hi all!
>
> We have a problem with some Cobalt Raq3 machines. It seems that the
> SMTP mail (since yesterday) takes too much problems (generally are
> timeout connections), and it seems that in the end you are able to
> receive the mail, but 6 hours delayed more o less..
>
> Any ideas? How can I avoid this? I have a firewall between the Cobalt
> and the external networks, but it trust in this machine (I have been
> making test and the firewallworks perfectly).
>
> Lots of thanx!
>
>    fabRiX