Setting up Yahoo Domain Keys
 

Can someone please explain to me how to setup domain keys on a linux server so that my mail server can send email to yahoo inboxes.

I've got Gmail and Hotmail to work (using a reverseDNS and a DNS SPF), but yahoo requires server configurations for some special daemon, plus you also need to configure sendmail.

I have no idea how todo this, and it seems that all of the tutorials I've found online are really difficult to understand.

Anyone?

This is very easy to follow http://www.topdog.za.net/postfix_domainkeys_milter just use the updated rpm found here http://www.topdog-software.com/oss/dk-milter/