mailer.bilgilendirme.turktelekom.com.tr has no NS records.
NS records for this zone are defined at turktelekom.com.tr.
NS records for this zone are defined at turktelekom.com.tr.
Question and response
Question
dig mailer.bilgilendirme.turktelekom.com.tr. NS
Answer
The response has no answer records.
Authority
bilgilendirme.turktelekom.com.tr. 600 SOA ns1.ttidc.com.tr. idcteam.turktelekom.com.tr. 2018030201 86400 14400 3628800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0