Ini sekedar catatan aja, tentang cara install DKIM, hihi.
Kalau ga paham ya harap maklum
SET LOCALE
vi .bash_profile
export LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
. ~/.bash_profile
INSTALL DKIM
http://www.rosehosting.com/blog/how-to-install-and-integrate-opendkim-with-postfix-on-a-centos-6-vps/
vim /etc/opendkim/SigningTable
*@mydomain.com default._domainkey.mydomain.com ⇒ diganti ke *@* biar bisa untuk semua domain