backup.mail.profiwh.com has no MX records.
Question and response
Question
dig backup.mail.profiwh.com. MX
Answer
The response has no answer records.
Authority
profiwh.com. 3600 SOA ns.profiwh.com. hostmaster.profiwh.com. 2025122301 3600 7200 7200 7200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0