mail.milltime.se has no CNAME records.
Question and response
Question
dig mail.milltime.se. NS
Answer
The response has no answer records.
Authority
milltime.se. 1073 SOA zanzibar.millnet.se. hostmaster.millnet.se. 2025094526 3600 900 1209600 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0