Hi, I am following this tutorial and have hit a road block just after "init script fix". I downloaded "/etc/init.d/dkim-milter" and edited the SIGNING_DOMAIN to point to my server I then did : chkconfig --level 345 dkim-milter on service dkim-milter start and got the error: Starting DKIM milter (dkim-filter #0): dkim-filter: smfi_opensocket() failed The tutorial didn't say to edit the script but without it edited I got a different error (which I didn't save). Thanks for the tutorial - hope you can help me get it working.