mail2.cafax.se has no CNAME records.
Question and response
Question
dig mail2.cafax.se. NS
Answer
The response has no answer records.
Authority
cafax.se. 300 SOA ns.cafax.se. hostmaster.cafax.se. 2026030600 28800 7200 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0