Question and response
Question
dig birstamp.com. MX
Answer
birstamp.com. 300 MX 10 birstamp.com.
Authority
birstamp.com. 1800 NS dns1.registrar-servers.com.
birstamp.com. 1800 NS dns2.registrar-servers.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0
birstamp.com. 300 A 81.28.111.154