inbound.gci.net has no MX records.
Question and response
Question
dig inbound.gci.net. MX
Answer
The response has no answer records.
Authority
gci.net. 86400 SOA vans-1.gci.net. internetdnsadmin.gci.com. 2026021601 300 300 60480 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0