SpamAssassin 2.55 problem

Julian Field mailscanner at
Sun Jun 29 15:50:29 IST 2003

At 15:45 29/06/2003, you wrote:
>I have tried various max children settings - from the default of 5 down
>to 1.  I still found MailScanner/SpamAssassin couldn't keep up.
>Currently I have 1 MailScanner process and a max of 15 messages per

Changing the max batch size won't make much difference. Remember it is the 
**maximum** size of a batch. If your mail comes in a trickle, the batches 
will probably only ever have 1 or 2 messages in them. MailScanner never 
sits around waiting for a batch to grow. If there is 1 message waiting in 
the incoming queue, it will still be processed immediately.

>As I said before, it seems to me that SpamAssassin 2.55 is the limiting
>factor.  As soon as I enable it, everything grinds to a halt.
>I'll order more memory this week; taking the box up from its current 32
>Mb to its max of 256 Mb.

Fortunately RAM is dead cheap at the moment. It wasn't that long ago that I 
remember paying £30 (US$46) per Mbyte.

>In the meantime I just wanted to establish that some people have
>SpamAssassin 2.55 working well with the latest MailScanner.

It does work just fine, but it is a resource hog.

>----- Original Message -----
>From: "Julian Field" <mailscanner at ECS.SOTON.AC.UK>
>Sent: 29 June 2003 14:47
>Subject: Re: SpamAssassin 2.55 problem
> > One of the important things to do on small systems is to reduce the
> >          Max Children
> > setting in MailScanner.conf. This will greatly reduce the memory
> > On a lightly loaded system you probably need only 1 or maybe 2 child
> > processes. The default of 5 is for systems which have plenty of RAM.
> >

Julian Field
Professional Support Services at
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