ru.nl/MX: No response was received from the server over UDP (tried 4 times). (192.87.106.101, UDP_-_EDNS0_512_D_KN)
Warnings (1)
ru.nl/SOA: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). (131.174.78.16, UDP_-_EDNS0_4096_D_KN)