mxua.net zone: The server(s) responded over UDP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (216.239.32.106, 216.239.34.106, 216.239.36.106, 216.239.38.106, 2001:4860:4802:32::6a, 2001:4860:4802:34::6a, 2001:4860:4802:36::6a, 2001:4860:4802:38::6a)
mxua.net/DNSKEY: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (216.239.32.106, 216.239.34.106, 216.239.36.106, 216.239.38.106, 2001:4860:4802:32::6a, 2001:4860:4802:34::6a, 2001:4860:4802:36::6a, 2001:4860:4802:38::6a, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
www.mxua.net/A: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (216.239.32.106, 216.239.34.106, 216.239.36.106, 216.239.38.106, 2001:4860:4802:32::6a, 2001:4860:4802:34::6a, 2001:4860:4802:36::6a, 2001:4860:4802:38::6a, UDP_-_EDNS0_4096_D_KN)
www.mxua.net/AAAA: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (216.239.32.106, 216.239.34.106, 216.239.36.106, 216.239.38.106, 2001:4860:4802:32::6a, 2001:4860:4802:34::6a, 2001:4860:4802:36::6a, 2001:4860:4802:38::6a, UDP_-_EDNS0_4096_D_KN)
mxua.net/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.