Question and response
Question
dig dmarc-smtp.zcom.cz. AAAA
Answer
dmarc-smtp.zcom.cz. 1800 AAAA 2a0a:6580:11:0:0:0:b9b2:afb5
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0