<IfDefine HAVE_DNS> <IfModule !mod_dns.c> LoadModule dns_module extramodules/mod_dns.so </IfModule> </IfDefine> <IfModule mod_dns.c> # DNSEnabled - Enable the DNS server on this VirtualHost. # DNSDefaultTTL - Sets the default TTL used for all DNS replies (defaultsto 30 days # DNSAddMX - Adds an MX record to the current domain </IfModule>