mx.aktienprofi.com has no NS records.
NS records for this zone are defined at aktienprofi.com.
NS records for this zone are defined at aktienprofi.com.
Question and response
Question
dig mx.aktienprofi.com. NS
Answer
The response has no answer records.
Authority
aktienprofi.com. 3600 SOA dns.aktienprofi.com. hostmaster.aktienprofi.com. 1503325884 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0