stg.tobila.com has no MX records.
Question and response
Question
dig stg.tobila.com. MX
Answer
The response has no answer records.
Authority
stg.tobila.com. 1200 SOA dns01.stg.tobila.com. root.stg.tobila.com. 2026022501 10800 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0