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SpamAssassin by Alistair McDonald

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Chapter 17. Email Clients

SpamAssassin does not remove spam email from the user’s inbox; it only adds additional headers to tag email messages. Another part of the email delivery process performs the sorting. For sites that can use procmail, users or system administrators can filter spam into a folder automatically, as described in Chapter 8.

By moving spam to a different folder, we ensure that users do not view the spam unless they choose to. Their inbox is then free of spam, yet the spam can be browsed if desired. This is an important fallback in case legitimate email is incorrectly categorized as spam.

The email client that the user uses to view and create emails can often be used to filter spam. To do this, it has to be able to selectively ...

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