MS not scanning some mails.

[Sujith Emmanuel]

Hello Everyone,

	I have a peculiar problem. MailScanner is missing some of the spams.

SpamAssassin Score:0.00 
Spam Report:
                                 Score
                             Matching Rule
                                 Description
                                 cached
                                  not
                                    
                                  out
                                 timed
                                    

I have seen the same mail caught when it comes the very next time. 

I am having the latest stable versions of MS and all the other
components as per mailscanner.info.
OS is AS4.

system uptime:
10:56:47 up 31 days, 21:11,  1 user,  load average: 0.34, 0.26, 0.36

Thanks and Regards
Sujith Emmanuel