Question and response
Question
dig spf.gansend.com. PTR
Answer
The response has no answer records.
Authority
gansend.com. 3600 SOA ns1.mainloop.net. hostmaster.gansend.com. 2025080606 3600 900 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0