spf.fence-mail.bsc.fujitsu.com has no NS records.
NS records for this zone are defined at fujitsu.com.
NS records for this zone are defined at fujitsu.com.
Question and response
Question
dig spf.fence-mail.bsc.fujitsu.com. NS
Answer
The response has no answer records.
Authority
fujitsu.com. 1200 SOA a3-66.akam.net. hostmaster.akamai.com. 4000003721 3600 900 3600000 1200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0