Not often I post

Julian Field MailScanner at
Fri Mar 31 08:35:59 IST 2006

Please can you send me the df and qf files of the message (off-list!).
I will test it against the latest code and see what happens.
If you could get them to me today, I may be able to fix the problem  
before the new version release tomorrow.

On 30 Mar 2006, at 23:02, 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.
> Regards
> KArl
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Julian Field
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