{"id":1350,"date":"2013-10-23T07:07:42","date_gmt":"2013-10-23T12:07:42","guid":{"rendered":"https:\/\/www.rosehosting.com\/blog\/?p=1350"},"modified":"2025-07-18T05:21:05","modified_gmt":"2025-07-18T10:21:05","slug":"how-to-install-spamassassin-on-a-virtual-server-with-centos-6","status":"publish","type":"post","link":"https:\/\/www.rosehosting.com\/blog\/how-to-install-spamassassin-on-a-virtual-server-with-centos-6\/","title":{"rendered":"How to install SpamAssassin on a virtual server with CentOS 6"},"content":{"rendered":"
<\/div>\n
Status: This OS is no longer supported<\/h5>\n\n\n\n

This article, “How to install SpamAssassin on a virtual server with CentOS 6,” covers a version of CentOS that reached end of life (EOL). It is no longer supported. As such, this guide is no longer maintained. If you are currently operating a server running CentOS 6, we highly recommend contacting RoseHosting’s fully managed support<\/a>. They can upgrade or migrate you to a supported version of AlmaLinux.<\/em><\/p>\n\n\n\n\n\n\n

\"spamassassin\"<\/a><\/p>\n

SpamAssassin is an open-source mail filter, written in Perl, used for e-mail spam filtering based on content-matching rules. It can be used on a wide variety of email systems, including sendmail.<\/p>\n

SpamAssassin can easily be installed via RPM on a virtual private server<\/a> with CentOS 6<\/a> using the following steps:<\/p>\n

Enable EPEL repository<\/h2>\n
vi \/etc\/yum.repos.d\/epel.repo<\/pre>\n
[epel]\nname=Extra Packages for Enterprise Linux 6 - $basearch\n#baseurl=http:\/\/download.fedoraproject.org\/pub\/epel\/6\/$basearch\nmirrorlist=https:\/\/mirrors.fedoraproject.org\/metalink?repo=epel-6&arch=$basearch\nfailovermethod=priority\nenabled=1\ngpgcheck=1\ngpgkey=file:\/\/\/etc\/pki\/rpm-gpg\/RPM-GPG-KEY-EPEL-6\n[epel-debuginfo]\nname=Extra Packages for Enterprise Linux 6 - $basearch - Debug\n#baseurl=http:\/\/download.fedoraproject.org\/pub\/epel\/6\/$basearch\/debug\nmirrorlist=https:\/\/mirrors.fedoraproject.org\/metalink?repo=epel-debug-6&arch=$basearch\nfailovermethod=priority\nenabled=0\ngpgkey=file:\/\/\/etc\/pki\/rpm-gpg\/RPM-GPG-KEY-EPEL-6\ngpgcheck=1\n[epel-source]\nname=Extra Packages for Enterprise Linux 6 - $basearch - Source\n#baseurl=http:\/\/download.fedoraproject.org\/pub\/epel\/6\/SRPMS\nmirrorlist=https:\/\/mirrors.fedoraproject.org\/metalink?repo=epel-source-6&arch=$basearch\nfailovermethod=priority\nenabled=0\ngpgkey=file:\/\/\/etc\/pki\/rpm-gpg\/RPM-GPG-KEY-EPEL-6\ngpgcheck=1<\/pre>\n
yum clean all\nyum update<\/pre>\n
Install Sendmail and Spamassassin packages and its dependencies:<\/p>\n
yum install sendmail sendmail-cf spamassassin spamass-milter\nyum install perl-Mail-SPF perl-Mail-DKIM perl-Razor-Agent pyzor poppler-utils re2c<\/pre>\n
chkconfig spamassassin on\nchkconfig spamass-milter on\nservice spamassassin start\nservice spamass-milter start<\/pre>\n
cd \/etc\/mail\/\nvi sendmail.mc<\/pre>\n
Add the following lines:<\/p>\n
dnl #\n dnl # SPAMASSASSIN dnl\n dnl **\n dnl ** enable spamassassin-milter to scan for spam using spamassassin **\n dnl **\n INPUT_MAIL_FILTER(`spamassassin', `S=unix:\/var\/run\/spamass-milter\/spamass-milter.sock, F=, T=C:15m;S:4m;R:4m;E:10m')dnl\n define(`confMILTER_MACROS_CONNECT',`t, b, j, _, {daemon_name}, {if_name}, {if_addr}')dnl\n define(`confMILTER_MACROS_HELO',`s, {tls_version}, {cipher}, {cipher_bits}, {cert_subject}, {cert_issuer}')dnl\n dnl # END LOCAL ADDITIONS\n dnl #<\/pre>\n
make all<\/pre>\n
Restart Sendmail service for the changes to take effect:<\/p>\n
service sendmail restart<\/pre>\n
In order to make sure that Spamassassin works, execute the following command:<\/p>\n
spamassassin -D < \/usr\/share\/doc\/spamassassin-3.3.1\/sample-spam.txt 2>&1 |grep -i spf<\/pre>\n
To test your mail setup and verify that the filter is installed correctly and is detecting incoming spam, send an email\u00a0to an existing email account on the server with the following line in it:<\/p>\n
XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X<\/pre>\n
The email should be marked with [SPAM], and if you check the Sendmail log file using the ‘tail -f \/var\/log\/maillog’ command, you should notice something like:<\/p>\n
sendmail[4736]: qAGL3ib3004736: Milter add: header: X-Spam-Status: Yes, score=999.9 required=5.0<\/pre>\n
Congratulations<\/h2>\n
Of course, you don\u2019t have to do any of this if you use one of our Linux VPS Hosting<\/a> services, in which case you can simply ask our expert Linux admins to install this for you. They are available 24\u00d77 and will take care of your request immediately. You can also check our guide on how to install and integrate SpamAssassin with Postfix on a CentOS 6 VPS<\/a>.<\/p>\n
PS<\/span>.<\/strong> If you liked this post please share it with your friends on the social networks using the buttons on the left or simply leave a reply below. Thanks.<\/p>","protected":false},"excerpt":{"rendered":"
Status: This OS is no longer supported This article, “How to install SpamAssassin on a virtual server with CentOS 6,” … <\/p>\n
Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":1351,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1699,1706,1703,13],"tags":[34,8,177,1152,14,196],"class_list":["post-1350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-centos","category-email-servers","category-security","category-tutorials","tag-centos","tag-centos-vps-server","tag-linux-vps","tag-rosehosting","tag-sendmail","tag-spamassassin","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"\nHow to install SpamAssassin on a virtual server with CentOS 6 | RoseHosting<\/title>\n<meta name=\"description\" content=\"Learn how to install SpamAssassin on a virtual server with CentOS 6 and manage your email spam effectively.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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