# dnsdb ipv6 lookup in string expansions exim -be ptr=V6NET:0:12:1:a00:20ff:fe86:a062 ${lookup dnsdb {ptr=<;V6NET:0:12:1:a00:20ff:fe86:a062}{$value}{fail}} ptr=V6NET:0:12:1:a00:20ff:fe86:a062 ${lookup dnsdb {ptr=V6NET:0:12:1:a00:20ff:fe86:a062}{$value}{fail}} ****