http://www.andrewferrier.com/blog/2006/10/30/meta-blog/ Economics; Travel; Film; and Technology. Tue, 06 Jan 2009 03:22:41 +0000 http://wordpress.org/?v=2.7 hourly 1 http://www.andrewferrier.com/blog/2006/10/30/meta-blog/comment-page-1/#comment-3975 Andrew Ferrier’s Blog » Blog Archive » Spam and OCR Fri, 10 Nov 2006 14:13:04 +0000 http://www.new-destiny.co.uk/andrew/blog/2006/10/30/meta-blog/#comment-3975 [...] As I’ve mentioned before, I have a huge spam problem on my personal e-mail account (~4,000/week) - due to a combination of bad luck and some foolish naivety at a few points - and so I have a fairly highly-tuned SpamAssassin installation running at home, with plenty of custom rules and plugins. I’ve seen a rising amount of image spam on it, so I decided to give FuzzyOcr, a plugin for SpamAssassin, a try. So far, the results are pretty impressive. FuzzyOcr uses the open-source gocr program as the engine, and ties it to with SpamAssassin and some logic. The OCR is fairly CPU-intensive, so unlike most SpamAssassin plugins, it only kicks in if the message is otherwise going to be below a certain scoring threshold. So far it has roughly halved the volume of spam that slips through into my inbox (previously ~40-50/day), which is a welcome improvement. [...] [...] As I’ve mentioned before, I have a huge spam problem on my personal e-mail account (~4,000/week) - due to a combination of bad luck and some foolish naivety at a few points - and so I have a fairly highly-tuned SpamAssassin installation running at home, with plenty of custom rules and plugins. I’ve seen a rising amount of image spam on it, so I decided to give FuzzyOcr, a plugin for SpamAssassin, a try. So far, the results are pretty impressive. FuzzyOcr uses the open-source gocr program as the engine, and ties it to with SpamAssassin and some logic. The OCR is fairly CPU-intensive, so unlike most SpamAssassin plugins, it only kicks in if the message is otherwise going to be below a certain scoring threshold. So far it has roughly halved the volume of spam that slips through into my inbox (previously ~40-50/day), which is a welcome improvement. [...]

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