Simple Application of SpamAssassin

Here we will only talk about the simple application of SpamAssassin, which is to use the SpamAssassin rule set to mark spam as spam, then, use a policy on the client outlook to automatically transfer emails with spam characters to the spam directory.

See article
CCERT Chinese Spam filtering rule set
Http://www.ccert.edu.cn/spam/sa/Chinese_rules.htm)

Test environment: redhat9.0
Prerequisites: You have installed qmail. The environment set up in this article is qmail + vpopmail + igeus.

1: Install SpamAssassin
Installation Method 1: directly install using CPAN
Perl-MCPAN-e shell
Install Mail: SpamAssassin

2. Compile and install the SDK by yourself.
Download the latest software from http://spamassassin.apache.org

Decompress the package: # perl Makefile. PL
# Make
# Make install

# Perform a spam and non-spam Test
In the spamassassin source file directory:
Spamassassin-t <sample-spam.txt> spamtest.txt
Less spamtest.txt
Spamassassin-t <sample-nonspam.txt> nospamtest.txt
Less nospamtest.txt
The spamtest.txt file contains the line "****** SPAM *****" in the topic section, but does not exist in the nospamtest.txt file.
(Read/etc/mail/spamassassin/local. cf configuration by default .)

If an error is reported during make, refer to this article to Solve the Problem http://blog.5ilinux.com/archives/2005/07/spamassassin.html

3: configure the local. cf file
# Vi/etc/mail/spamassassin/local. cf

# How many hits before a message is considered spam.
Required_hits 9.5

# Text to prepend to subject if rewrite_subject is used
Rewrite_header Subject ****** spam *****

# Encapsulate spam in an attachment
Report_safe 1

# Enable the Bayes system
Use_bayes 1

# Enable Bayes auto-learning
Bayes_auto_learn 1

# Enable or disable network checks
Skip_rbl_checks 1
Use_razor2 0
Use_dcc 0
Use_pyzor 0

# Mail using administration ages used in these country codes will not be marked
# As being possibly spam in a foreign language.
OK _ages all

# Mail using locales used in these country codes will not be marked
# As being possibly spam in a foreign language.
OK _locales all

For details about the SpamAssassin configuration file, refer to SpamAssassin 3.x Configuration Guide (Chinese version)
(Http://anti-spam.org.cn/references/index.php? Action = Show & ID = 9)

4: Download the Chinese rule set for spam
Wget-N-P/usr/share/spamassassin www.ccert.edu.cn/spam/sa/Chinese_rules.cf

5: Combination of qmail and SpamAssassin

Compile qmail-spamc in the spamc directory of SpamAssassin 3.x
# Cc-O-o qmail-spamc qmail-spamc.c
# Install-m 755 qmail-spamc/var/qmail/bin

# Ln-s/var/qmail/bin/qmail-queue/usr/bin/qmail-queue

Edit/etc/tcp. smtp as follows:
127.: allow, RELAYCLIENT = ""
: Allow, QMAILQUEUE = "/var/qmail/bin/qmail-spamc"

Then:
Tcprules tcp. smtp. cdb tcp. smtp. tmp <tcp. smtp

Under the spamd directory of the compilation directory
Mv redhat-rc-script.sh/etc/rc. d/init. d/spamd

Start spamd
/Etc/rc. d/init. d/spamd start

In this way, SpamAssassin will automatically judge spam based on the Rule Set, and mark potential spam emails with the *** spam *** mark at a glance, as for how to set a policy for automatic transfer of spam in outlook on the client, I don't need to talk about it.