[Mimedefang] Message size limits to pass to SA

Lucas Albers admin at cs.montana.edu
Tue Nov 18 12:37:55 EST 2003

i set my scan limit to 400k to catch spam with attached images.
This catches spam mail messags that are 300k, which I have received a
number of times.
This has not caused any timeouts on my system, but your mileage may vary.
I would only raise the size threshhold if you are getting a lot of large
sized spam messages, and your mail volume is relativelly low.


>>SA has non-linear time complexity, something like O(N^2) in my
>>experience.  A 1MB file will take ages to scan and likely cause
>>timeouts and many other problems.
>>I've never seen a spam more than 30kB, unless it was spam in an image,
>>and SA wouldn't catch that anyway.
> I was concerned the processing load with SA would be far from linear
> growth given the ever larger message to scan.
> Oh well, that idea hits the bit-bucket for now.
> Thanks,
> Charles
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