prdociukd.bigmachines.com has no SRV records.
Question and response
Question
dig prdociukd.bigmachines.com. SRV
Answer
The response has no answer records.
Authority
prdociukd.bigmachines.com. 300 SOA ns1.p201.dns.oraclecloud.net. hostmaster.prdociukd.bigmachines.com. 2020121704 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0