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Glossary
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| Base64 -
Base64 is a method of encoding binary data sent as an attachment through email. Base64 encoding divides three bytes of data into four bytes of ASCII text, making the resulting file size approximately 33% larger.
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| Bayesian logic -
Named for Thomas Bayes, an English mathematician, Bayesian Logic is a branch of logic applied to decision making and inferential statistics that deals with probability inference. Some spam filters use Bayesian Logic to determine the probability that a given email message is spam by comparing the contents of the email to the contents of known spam. Individual keywords are rated for their statistical likelihood of being spam words, when the individual scores are totalled up, a probability is calculated for the entire email being spam.
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| BCC -
(Blind Carbon Copy) - BCC is a method of hiding certain recipients of an email from the rest of the recipients.
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| Blacklist -
As regarding spam, blacklists are lists of known spammers, their IP addresses, and/or their ISP (Internet Service Provider). Using this information, spam filters can block all messages coming from known spammers and/or their ISPs. ISPs that fail to discipline spammers may find all email from their legitimate customers blocked by large numbers of recipients. This tactic forces the ISP to take action against spammers using their systems because legitimate users do not want to be inconvenienced by having their email blocked.
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| Body -
As it regards to email, the body is the main part of the email that contains the text and images the user types in. In addition to the body, emails also contain headers which are used to route the email.
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| Bounced Message -
An email that is returned to the sender because the email was not deliverable (usually because the email address does not exist).
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