Question and response
Question
dig mx.preswitt.com. ZONEMD
Answer
The response has no answer records.
Authority
preswitt.com. 3600 SOA dns.preswitt.com. hostmaster.preswitt.com. 1128893732 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0