Question and response
Question
dig core.calserver.eu. TXT
Answer
core.calserver.eu. 3600 TXT "v=spf1 a mx ip4:142.132.134.52 include:spf.cal.pl ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0