Question and response
Question
dig nfbcal.org. MX
Answer
nfbcal.org. 86400 MX 5 lothlorien.nfbcal.org.
nfbcal.org. 86400 MX 10 smtp1.via.net.
nfbcal.org. 86400 MX 20 smtp3.via.net.
nfbcal.org. 86400 MX 15 smtp2.via.net.
nfbcal.org. 86400 MX 7 nbsmtp1.nfbcal.org.
nfbcal.org. 86400 MX 25 smtp4.via.net.
Authority
The response has no authority records.
Additional
lothlorien.nfbcal.org. 86400 A 199.4.218.11
nbsmtp1.nfbcal.org. 86400 A 45.79.226.29
. 0 OPT [{Extended_DNS_Error: PROHIBITED}] ; payload 512, xrcode 0, version 0, flags 0