Question and response
Question
dig pvtnet.cz. TXT
Answer
pvtnet.cz. 86400 TXT "v=spf1 mx ip4:193.85.2.13 ~all"
Authority
pvtnet.cz. 86400 NS sns.nextra.cz.
pvtnet.cz. 86400 NS dns.nextra.cz.
Additional
dns.nextra.cz. 86400 A 193.85.1.117
sns.nextra.cz. 86400 A 193.85.2.117
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0