Not often I post

Julian Field MailScanner at ecs.soton.ac.uk
Sat Apr 1 13:09:11 IST 2006


I think this was fixed in 4.51.6, it certainly doesn't appear to cause 
any problems now.

Karl Bailey wrote:
> I've updated MailScanner as suggested & supplied the "broken" message
> directly to Julian. Hopefully this will help with this issue. Thanks for
> the responses.
>
> Regards
> KArl   
>
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Steve
> Freegard
> Sent: 31 March 2006 09:32
> To: MailScanner discussion
> Subject: Re: Not often I post
>
> Hi Karl,
>
> On Thu, 2006-03-30 at 23:02 +0100, Karl Bailey wrote:
>   
>> Only when I have a problem, which I seem to at the moment. Two day in
>> a row now I have had a problem with MailScanner 4.51.5-1 running in
>> RedHat FC1. It employs spam assassin, kaspersky, f-prot & mcafee virus
>> scanning. CPU usage etc hovers around 25% & all in all it works very
>> well processing around 20000 messages (6GBytes) a day.
>>
>>  
>>
>> I have received a single message that brings mailscanner to it's
>> knees .. the message enters the inbound mail queue, the MailScanner
>> processes defunct one by one till MailScanner is effectively not
>> processing mail any more, mail builds up in the inbound mail queue.
>> This is exasperated by the fact that although MailScanner reports as
>> defunct in the process list it is actually still identifying spam, &
>> generating spam warning messages, which in turn end up in the inbound
>> queue... this seems to lead to a "DOS" effect. 
>>
>>  
>>
>> I have isolated the single message in it's raw queue qf & df files.
>> Every time I place it into the inbound queue the processes defunct, &
>> yes I am ensuring there is no file permissions problems... If anyone
>> wants a copy of the message I can send them the queue files.... I'm
>> suspicious though that the Virus Scanning is where the problem lies,
>> hence without the combination of VC's listed above it may run through
>> the queue ... Any ideas? The one thing I've noticed about the header
>>     
> (qf
>   
>> file) is that there seems to be some very long boundary strings
>> emplyed.
>>
>>     
>
> We had a number of customers with exactly the same problem on 4.51.5 -
> an upgrade to 4.51.6 solved the problem for them.
>
> Kind regards,
> Steve.
>
>   

-- 
Julian Field
www.MailScanner.info
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