Question and response
Question
dig mail.coprosys.cz. TXT
Answer
mail.coprosys.cz. 86400 TXT "v=spf1 ip4:94.138.112.17 ip4:80.82.147.50 ip4:94.138.101.113 ~all"
Authority
coprosys.cz. 86400 NS nsa.coprosys.cz.
coprosys.cz. 86400 NS nsb.coprosys.cz.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0