mixmaster

Anonymous remailer client and server
Mixmaster is the reference implementation of the type II remailer protocol
which is also called Mixmaster.
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An anonymous remailer is a computer service that privatizes your email. A
remailer allows you to send electronic mail to a Usenet news group or to a
person without the recipient knowing your name or your email address.
Anonymous remailers provide protection against traffic analysis.
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This package provides both a client and an optional server installation.