Install SpamAssassin DirectAdmin

Install SpamAssassin on a DirectAdmin server will help keep spam to a minimum. Much like on cPanel servers SpamAssassin runs as a separate service on your server but can be configured to catch most spam emails reducing the amount of junk in your and your user’s mailboxes.

Here we will provide a step by step guide to installing SpamAssassin on a DirectAdmin server. First check you have perl installed and the required modules on your DirectAdmin server.

Setup SpamAssassin – CentOS

yum -y install perl-ExtUtils-MakeMaker perl-Digest-SHA perl-Net-DNS perl-NetAddr-IP perl-Archive-Tar perl-IO-Zlib perl-Digest-SHA perl-Mail-SPF \  perl-IP-Country perl-Razor2 perl-Net-Ident perl-IO-Socket-INET6 perl-IO-Socket-SSL perl-Mail-DKIM perl-DBI perl-Encode-Detect perl-HTML-Parser \  perl-HTML-Tagset perl-Time-HiRes perl-libwww-perl perl-Sys-Syslog perl-DB_File perl-Razor-Agent pyzor

SpamAssassin – Debian

apt-get install libhtml-parser-perl libhttp-date-perl libnet-dns-perl libnetaddr-ip-perl libsocket6-perl libsys-hostname-long-perl libwww-perl \  libio-socket-inet6-perl libmail-spf-perl libsys-syslog-perl libdbi-perl libencode-detect-perl libio-socket-ssl-perl \  libmail-dkim-perl razor libio-socket-ip-perl libnet-patricia-perl

Finally, use custombuild to install to the server

cd /usr/local/directadmin/custombuild
./build set spamd spamassassin 
./build spamassassin

You should now see SpamD running on the system and can now be enabled via the user level account in DirectAdmin

ps ax | grep spamd

Now that you have this installed users can configure the software from the user level section and the SpamAssassin link. Care should be taken here to now delete messages that could be legitimate. We find that a custom level of 4 catches most spam. When send to the spam folder helps keep our mailboxes junk-free. We do not recommend any users automatically deleting mail marked as junk because false positives can happen. We have included below the settings we generally use. Should you find level 4 is too vicious and sending legitimate email to the junk folder you can just go back to the user level and up the limit to 4.5