1. A method of tracking email dispersion through content substitution comprising: identifying a set of at least two email receiving entities for an email dispersion; identifying textual content of a body of an email message for the email dispersion to the set of email receiving entities; programmatically determining a plurality of words within textual content of the body of the email message, wherein each of the determined words have at least one synonym; generating a set of replacement words for each of the determined words, wherein each of the replacement words is a synonym of the corresponding one of the determined words; for each different email message to be sent to a specific one of the receiving entities, programmatically substituting at least one replacement word for a corresponding one of the determined words to generate an entity specific message, wherein each entity specific message contains a unique combination of substitutions in the body of the entity specific message, so that no two entity specific message are identical; maintaining a record of which email receiving entities are associated with which entity specific message; and conveying the entity specific messages to the set of email receiving entities.
1. A method of tracking email dispersion through content substitution comprising: identifying a set of at least two email receiving entities for an email dispersion; identifying textual content of a body of an email message for the email dispersion to the set of email receiving entities; programmatically determining a plurality of words within textual content of the body of the email message, wherein each of the determined words have at least one synonym; generating a set of replacement words for each of the determined words, wherein each of the replacement words is a synonym of the corresponding one of the determined words; for each different email message to be sent to a specific one of the receiving entities, programmatically substituting at least one replacement word for a corresponding one of the determined words to generate an entity specific message, wherein each entity specific message contains a unique combination of substitutions in the body of the entity specific message, so that no two entity specific message are identical; maintaining a record of which email receiving entities are associated with which entity specific message; and conveying the entity specific messages to the set of email receiving entities. 6. The method of claim 1 , wherein at least one email receiving entity comprises a group of email receiving entities, said group comprising a plurality of different email recipients, each of the different email recipients having a unique email address.