[root@cat22222 custombuild]# service exim restart
Starting exim: 2017-06-04 11:27:15 Exim configuration error in line 3 of /etc/exim.clamav.conf:
error in ACL: unknown ACL condition/modifier in "demime = *"
Just to be sure... are you using the Spamblocker 4.x exim.conf file? If yes, you normally don't need to do *any* of the exim.conf edits mentioned in the help section for clamav.
And which exim.pl are you using?