-val dnsText = \from -> \to -> dns (dnsTXT (literal from) to);
-val dnsDefaultText = \to -> dns (dnsTXT default to);
+val dnsText = \from -> \to -> dns (dnsTXT (srv_literal from) to);
+val dnsDefaultText = \to -> dns (dnsTXT srv_default to);
+
+val dnsWildcardIP = \to -> dns (dnsA wildcard to);
+
+val addDefaultSPF = dnsDefaultText "v=spf1 mx -all";