[ILUG] Additional spam protection
thomas at pedoussaut.com
Wed Oct 18 09:38:27 IST 2006
> Colm Buckley wrote:
>> * All incoming list messages have HTML and image parts removed
>> * If the resulting mail contains only whitespace, it is dropped
> Good stuff - thanks.
> I'm running two mail servers with spamassassin. I get lot of those
> messages with animated GIFs containing useful and interesting stock
> information + random text appended making it through on both of them.
> Has anyone come across a way to filter these? I could just block
> animated GIFs, I guess, but people tend to send those to each other...
If you have a beast for filtering, there is 2 options:
Basically, it OCR's the image and then spamassassin can use the content
to filter (based on presence of STOCK, TICKER ....
ImageInfo is based on number and size of images in the message.
ImageInfo will (may) be included in the next release of spamassassin.
I didn't tried it though, I dont have the ressouces to do that on a
gateway transiting 10.000+ messages a day.
Thomas Pedoussaut <thomas at pedoussaut.com>
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