mail.updatesystem.se has no NS records.
NS records for this zone are defined at updatesystem.se.
NS records for this zone are defined at updatesystem.se.
Question and response
Question
dig mail.updatesystem.se. NS
Answer
The response has no answer records.
Authority
updatesystem.se. 3600 SOA ns1.loopia.se. registry.loopia.se. 1771459200 14400 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0