Spamassassin 사용하기

sendmail과 spamassassin을 이용하여 스팸메일을 걸러내도록 해보자.

yum을 이용하여 spamassassin 설치

 설치확인

[root@mail mail]# rpm -qa spamassassin

spamassassin-3.3.1-2.el6.i686

서비스를 올릴 계정으로 spmad 생성

[root@mail mail]# useradd -s /bin/false spamd
[root@mail mail]# cat /etc/passwd | grep spam

spamd:x:886:887::/home/spamd:/bin/false

아래내용을 복사해서 해당 파일에 넣어주자

[root@mail mail]# vi /etc/sysconfig/spamassassin

#Hint : If you want to enable SpamAssassin debugging

# (the debug output goes to /var/log/maillog) then use :

# SPAMDOPTIONS="-x -u spamd -H /home/spamd -d -D"

# Don't leave debugging turned on unnecessarily though,

# because it will slow down a busy server.

#

# Otherwise, for normal operation (debugging disabled) use :

SPAMDOPTIONS="-x -u spamd -H /home/spamd -d"

[root@mail mail]# vi /etc/mail/spamassassin/local.cf

#SpamAssassin config file for version 3.x

# NOTE: NOT COMPATIBLE WITH VERSIONS 2.5 or 2.6

# See http://www.yrex.com/spam/spamconfig25.php for earlier versions

# Generated by http://www.yrex.com/spam/spamconfig.php (version 1.50)

# How many hits before a message is considered spam.

required_score           7.5

# Change the subject of suspected spam

rewrite_header subject         [SPAM]

# Encapsulate spam in an attachment (0=no, 1=yes, 2=safe)

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         0

use_razor2              0

use_dcc                 0

use_pyzor               1

# Mail using languages used in these country codes will not be marked

# as being possibly spam in a foreign language.

ok_languages            all

# Mail using locales used in these country codes will not be marked

# as being possibly spam in a foreign language.

ok_locales              all

*required_score가 낮을수록 더 엄격하게 필터링이 된다.

*도메인을 화이트 리스트를 추가하려면 whitelist_from *@abc.com 로 추가해 준다.

[root@mail mail]# vi /etc/procmailrc

DROPPRIVS=yes

#SpamAssassin Procmail start

#

:0fw: spamassassin.lock

* < 256000

| spamc -u $LOGNAME

#SpamAssassin End

 

이제 서비스를 올려보자.

[root@mail mail]# service sendmail restart
[root@mail mail]# service spamassassin start

[root@mail mail]# ps -aux | grep spam

root     30221  0.3  6.9  45244 35348 ?        Ss   13:40   0:05 /usr/bin/spamd -x -u spamd -H /home/spamd -d -r /var/run/spamd.pid

spamd    30222  1.4  8.0  50836 41424 ?        S    13:40   0:25 spamd child

spamd    30224  0.0  7.5  48120 38396 ?        S    13:40   0:01 spamd child