Exim - Setting Up Domainkeys

The DNS can be tested entering my selector._domainkey.mydomain.com on http://domainkeys.sourceforge.net/selectorch eck.html. You need to created private and public keys, files "private" and "public" located on the Exim folder. Exim also needs to be recompiled to add DomainKeys support (exim -bV shows "DK" support). The next step was to add the lines:

dk_smtp:
driver = smtp
dk_private_key = /usr/local/etc/exim/private
dk_selector = january
dk_canon = simple

To the Exim configuration file, under SMTP transport which just defines the transport. Then heck your remote smtp router(s) for the following line

"transport = <routername>"
and replace <routername> by dk_smtp.