Question and response
Question
dig spf01.sabacloud.com. PTR
Answer
The response has no answer records.
Authority
sabacloud.com. 1800 SOA ns1.p05.dynect.net. hostmaster.humanconcepts.com. 68395 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0