Question and response
Question
dig mta.gansend.com. MX
Answer
mta.gansend.com. 86400 MX 10 mx.gansend.com.
Authority
gansend.com. 3600 NS ns2.mainloop.net.
gansend.com. 3600 NS ns1.mainloop.net.
gansend.com. 3600 NS ns4.mainloop.net.
gansend.com. 3600 NS ns3.mainloop.net.
Additional
mx.gansend.com. 900 A 194.71.224.144
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0