mail.globallyhost.com has no NS records.
NS records for this zone are defined at globallyhost.com.
NS records for this zone are defined at globallyhost.com.
Question and response
Question
dig mail.globallyhost.com. NS
Answer
The response has no answer records.
Authority
globallyhost.com. 300 SOA ns.rackspace.com. support.grupointernet.com. 1766960736 21600 3600 1814400 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0