webmail1.jazznet.es has no NS records.
NS records for this zone are defined at jazznet.es.
NS records for this zone are defined at jazznet.es.
Question and response
Question
dig webmail1.jazznet.es. NS
Answer
The response has no answer records.
Authority
jazznet.es. 86400 SOA dns.jazztel.es. admin.jazztel.es. 2014032803 86400 7200 2592000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0