# event on dnsdb lookup fail exim -be bad_a ${lookup dnsdb{a=nonexistent.test.ex}{$value}{FAIL}} badcname ${lookup dnsdb{a=badcname.test.ex}{$value}{FAIL}} defer ${lookup dnsdb{a=test.again.dns}{$value}{FAIL}} good ${lookup dnsdb{txt=test.ex}{$value}{FAIL}} ****