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Table Of Contents  CertiGuide to Security+
 9  Chapter 2:  Communication Security (Domain 2.0; 20%)
      9  2.2  Email
           9  2.2.3  Vulnerabilities

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Message Privacy
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Message Forgery
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Header Privacy

Another issue with email is that of header privacy. For example, you might want to send multiple users copies of an email message. When you do this, consider your set of recipients and the content of your message – do you want everyone on the list to know the identity of the others who have received the message? You may not. In that case, rather than including all of the names on the “To:” line, consider sending the message “To:” yourself, and “Bcc:” (or blind carbon-copy) everyone else, or use a distribution list – both of these messages will preserve the privacy of other recipients’ identities.

Similarly, some SMTP servers log sent and received message header information in a file readable by anyone with access to the server.


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Message Privacy
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Message Forgery
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