server.imapsync.serverplan.com has no NS records.
NS records for this zone are defined at serverplan.com.
NS records for this zone are defined at serverplan.com.
Question and response
Question
dig server.imapsync.serverplan.com. NS
Answer
The response has no answer records.
Authority
serverplan.com. 3600 SOA ns1.dns4userver.com. server.serverplan.com. 2025120200 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0