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Requirements: |
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SpamAssassin 3.1.4 or higher |
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libungif: |
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http://sourceforge.net/project/showfiles.php?group_id=102202 |
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netpbm: |
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http://sourceforge.net/project/showfiles.php?group_id=5128 |
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gifsicle: |
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http://www.lcdf.org/gifsicle/gifsicle-1.44.tar.gz (latest) |
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gocr: (v0.40) suggested ... needs to be patched! |
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http://sourceforge.net/project/showfiles.php?group_id=7147 |
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ocrad (optional): |
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Please use your closest GNU mirror: |
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http://www.gnu.org/prep/ftp.html |
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Several perl modules: |
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String::Approx |
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MLDBM |
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Make sure all the above requirements are met, or else!!! |
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I personally think it is better to compile all from source, but |
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binary packages are available if you decide to go that way. The |
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only package that should be compiled from source is gocr (since |
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it requires some patching to make it work better ;) |
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Place a copy of the following files in your SpamAssassin local |
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configuration directory (/etc/mail/spamassassin by default): |
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FuzzyOcr.pm |
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FuzzyOcr.cf (change to taste) |
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FuzzyOcr.words |
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If using image-hasing option (disabled by default but recommended) you need to specify |
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the following options in FuzzyOcr.cf: |
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focr_enable_image_hashing 1 |
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focr_digest_db <full_path_to_file> |
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or (recommended) |
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focr_enable_image_hashing 2 |
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focr_db_hash <full_path_to_file> |
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focr_db_safe <full_path_to_file> |
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focr_db_max_days ## |
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In either case, you need to make sure the effective user running |
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SpamAssassin has the proper permissions to write to the specified files, |
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or change permissions on the files so that the effective user has |
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write permissions on these files. |
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Test with: |
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spamassassin --debug FuzzyOcr < path_to_email > /dev/null |
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If you do not get errors, you are ready to go, and restart SPAMD which is |
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the (*strongly*) recommended way to use this plugin. |
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