mailhub.webglobe.com has no CNAME records.
Question and response
Question
dig mailhub.webglobe.com. NS
Answer
The response has no answer records.
Authority
webglobe.com. 600 SOA ns1.nameserver.sk. root.dnsbackup.net. 2026022310 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0