A method and apparatus to identity SPAM emails is disclosed. The method
sets a misspelling rejection ratio. Upon receipt of an email comprising
(X) words, the method determines the number (Y) of misspelled words
comprising that email. The method then calculates a misspelling ratio by
dividing (Y) by (X), and then determines if the misspelling ratio is
greater than or equal to the misspelling rejection ratio. If the method
determines that the misspelling ratio is greater than or equal to the
misspelling rejection ratio, then the method reports the email as SPAM.
In certain embodiments, the detection of words used to trigger the
rejection of SPAM is based on a fuzzy search of alternate spellings.
These alternate spellings may come from a spell checker.