Question and response
Question
dig spf.spamhero.com. PTR
Answer
The response has no answer records.
Authority
spf.spamhero.com. 172800 SOA ns.dnsbox.net. hostmaster.dnsbox.net. 2023111408 10000 3600 604800 172800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0