rs3-mbi.serverhostgroup.com has no SRV records.
Question and response
Question
dig rs3-mbi.serverhostgroup.com. SRV
Answer
The response has no answer records.
Authority
rs3-mbi.serverhostgroup.com. 86400 SOA ns1.serverhostgroup.com. root.rs3-mbi.serverhostgroup.com. 2026013100 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0