Add unix_domains to several places where local_domains are used.
drwxr-xr-x - conf.d
-rwxr-xr-x 341 deliver-once
lrwxrwxrwx 18 email-addresses -> ../email-addresses
-rwxr-xr-x 1787 get-token
-rw-r--r-- 0 mailmandb-ext
-rw-r--r-- 1181 update-exim4.conf.conf