/etc/systemd/system/named.servicewill have the following pre-check:
ExecStartPre=/usr/sbin/named-checkconf -z /etc/named.confbut if the incoming zone has spf values in the TXT record, but does not have the SPF record with the matching value, then you'll see this error, and named may refuse to start up:
named-checkconf: zone domain.com/IN: 'domain.com' found SPF/TXT record but no SPF/SPF record found, add matching type SPF recordNote, that DA can add the SPF values for you, but older versions of bind/named (9.3.x / CentOS 5) do not support them.. so if you use the Multi-Server Setup, it forces you do keep it shut off. It's disabled by default in DA for this reason.
#ExecStartPre=/usr/sbin/named-checkconf -z /etc/named.confthen reload the file, and restart named:
systemctl start named