Question and response
Question
dig out.o2.cz. TXT
Answer
out.o2.cz. 10800 TXT "v=spf1 ip4:160.218.161.71 ip4:160.218.161.72 ip4:160.218.161.73 ip4:160.218.11.33 ip4:160.218.11.38 ip4:160.218.11.39 -all"
Authority
o2.cz. 10800 NS dns.iol.cz.
o2.cz. 10800 NS ns2.tel.cz.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0