T_MR
{T_MR, "MR", "mail rename"},
{ "MR", T_MR },
| T_MR sp rdata_domain_name
| T_MR sp rdata_unknown { $$ = $1; parse_unknown_rdata($1, $3); }
%token <type> T_SRV T_CERT T_LOC T_MD T_MF T_MB T_MG T_MR T_NULL T_WKS T_HINFO
{ T_MR, "MR" }, /* RFC 1035 */