Question and response
Question
dig mx4.sophos.com. KEY
Answer
The response has no answer records.
Authority
sophos.com. 300 SOA asia1.akam.net. hostmaster.sophos.com. 2020012650 7200 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0