## Master domain name.
DEFCONF(master_domain, distorted.org.uk)
+## List of home-system mail domain names. This can be empty if we only
+## provide service for special-purpose domanis.
+DEFCONF(sysdomains, CONF_master_domain)
+
## The smarthost for satellite hosts.
DEFCONF(smarthost, mail.distorted.org.uk)