Install DKIM in Postfix using openDKIM
1. Install prerequisites ===========yum install sendmail-devel openssl-devel=========== 2. Install OpenDKIM Download then extract OpenDKIM. Change to the extracted directory and run configure, make and then, as root, make install. ===========wget http://downloads.sourceforge.net/project/opendkim/opendkim-2.4.2.tar.gztar -zxf opendkim-2.4.2.tar.gzcd opendkim*./configuremake...