Setup DKIM with Kloxo and qmail

This is a guide to install DKIM on CentOS 5 mail servers using qmailtoaster and Kloxo panel:


wget http://software.atnerds.com/linux/dkim/dkim.tgz

tar –zxf dkim.tgz

cd dkim

yum install perl-XML-Simple perl-Mail-DKIM perl-XML-Parser rpm-build openssl-devel

wget http://software.atnerds.com/linux/dkim/libdomainkeys-toaster-0.68-1.3.6.src.rpm

rpmbuild --rebuild libdomainkeys-toaster-0.68-1.3.6.src.rpm

rpm -ivh /usr/src/redhat/RPMS/i386/libdomainkeys-toaster-0.68-1.3.6.i386.rpm

mkdir /var/qmail/control/dkim

cp signconf.xml /var/qmail/control/dkim/

chown -R qmailr:qmail /var/qmail/control/dkim/

dknewkey /var/qmail/control/dkim/global.key > /var/qmail/control/dkim/public.txt

perl -pi -e 's/global.key._domainkey/dkim1/' /var/qmail/control/dkim/public.txt

qmailctl stop

mv /var/qmail/bin/qmail-remote /var/qmail/bin/qmail-remote.orig

mv qmail-remote /var/qmail/bin

chmod 777 /var/qmail/bin/qmail-remote

chown root:qmail /var/qmail/bin/qmail-remote

qmailctl start

Create a TXT record dkim._domainkey.domain on DNS server for the domain you want to set DKIM as shown in the output of the following command

cat /var/qmail/control/dkim/public.txt

DKIM setup should be finished. Once the DNS updates, you should be able to send DKIM signed emails.

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