Question and response
Question
dig spf2.patro.cz. TXT
Answer
spf2.patro.cz. 3600 TXT "v=spf1 a:xmail16.nwt.cz a:xmail.nwt.cz mx ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0