DNS.  That's classic DNS problem symptioms.  The various servers are performing 
a reverse lookup to log the entries by name - and you are waiting on the DNS 
timeout.  I bet you'll find the logs for both mail and SSH are full of IPs, 
with very few names.

Check your DNS settings to be sure you have a valid/good DNS server listed as 
first in the /etc/resolv.conf file.  You can modify that file by hand or via 
the GUI in the system settings.

Chuck

---------- Original Message -----------
From: "Roy Urick" <[email protected]> 
To: <[email protected]> 
Sent: Mon, 28 Mar 2011 12:19:33 -0400 
Subject: [BlueOnyx:06825]  slow Sendmail response

> After migrating from a low powered BQ box to an overpowered BO box, my users 
> have reported that Sendmail is incredibly slow to respond. They noted that 
> emails sit in their outlook outbox for quite a while before transferring 
> over. 
>  
> I also noticed that if I telnet to port 25, it connects instantly, but it’s a 
> good 10 seconds before I am greeted with a banner. 
> Connecting via SSH also exhibits a 10+ second lag before it tries to log in. 
> Connecting via the GUI is instantaneous. 
>  
> The server is sitting almost idle and is barely working at all (99%id, all 
> others sitting at <0.5%). 
>  
> Any ideas on what to check first? 
>  
>  
>  
> Thank you,
>  
>  
> Roy Urick
> IT Department
> Koorsen Fire & Security
> 2719 N Arlington Ave
> Indianapolis, IN 46218
> 317-225-5027 (IP Phone x2796)
>  
>  
>   ­­  
------- End of Original Message -------
 
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