Question and response
Question
dig clientmail.sixent.net. SRV
Answer
The response has no answer records.
Authority
sixent.net. 900 SOA ns-865.awsdns-44.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0