PROBLEM:
Fuzzy Ocr behaviour can be annoying in some cases as inline images used as a signature could be tagged as spam. How can i disable Fuzzy OCR hashing or adjust it’s scoring?
SOLUTION:
Disabling FUZZY OCR Hashing it is possible but not from the web interface.
Login as root by ssh or console and edit the file:
/etc/mail/spamassassin/FuzzyOcr.cf
looking for the line “focr_enable_image_hashing 3” and giving it score of 0.
In the same file it’s possible to adjust all other FUZZY OCR Checks scoring, for example:
# This is the score to give for a wrong content-type.
# e.g. JPEG image but content type says GIF
# Default value: 1.5
#focr_wrongctype_score 1.5
uncomment last line and adjust with desidered score:
focr_wrongctype_score 0.2
At the end perform a MailScanner restart.