Postfix queue fulling up

[Ugo Bellavance]

Maxime Gaudreault wrote:
> I have a serious problem with my antispam gateway. The postfix queue is 
> fulling up. It gets to 200-300 and even sometime more than 2000 mails in 
> the queue.
> 
>  
> 
> The server is a HP BL20P G4. CPU: Intel(R) Xeon(TM) CPU 2.80GHz
> 
> 1Gb RAM
> 
>  
> 
> I noticed that the load average is about 2.0. If I check with "htop" I 
> often see MailScanner: spam list or MailScanner: Checking with 
> spamassassin using 100% of CPU. RAM is used to 50%.
> 
>  
> 
> MailScanner version: 4.64.3
> 
> SpamAssassin version: 3.1.7-2 (from Debian repos.)
> 
>  
> 
> I use FuzzyOCR, razor and DCC. I rarely had this problem before using 
> razor and dcc and before upgrading to MS 4.64.3.

> I'm thinking of adding a 2^nd CPU but I want to know if I can change 
> some settings to fix the problem

This looks like a network problem.  When INQ goes up and load is low, 
that usually means that network congestion is the source.

Does your FW block outbound ports?  You need open ports for dcc, pyzor, 
razor.

Are your DNS queries answered quickly?

Ugo