ive been moving house! sorry i didnt see this earlier.. thank you for your help, im going to check these out.
i have various domains, which are all aliasses of one domain using google apps.
so i want to be able to send emails from the system, error messages from fail2ban, wordpress, root logs etc, to whomever needs them - but when i do, i see that google keeps saying - "this person might not be who they say they are" etc..
hense im looking for some encyrption and dkim stuffs