_spf.mtgsy.net has no NS records.
NS records for this zone are defined at mtgsy.net.
NS records for this zone are defined at mtgsy.net.
Question and response
Question
dig _spf.mtgsy.net. NS
Answer
The response has no answer records.
Authority
mtgsy.net. 3600 SOA ns1.g12.cfdns.net. hostmaster.mtgsy.net. 2011073053 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0