Question and response
Question
dig mxprimary.spamfilterserver.com. CERT
Answer
The response has no answer records.
Authority
spamfilterserver.com. 3600 SOA ns1.thednscompany.com. ns1.thednscompany.com. 2026012919 28800 7200 1209600 3600
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0