Question and response
Question
dig smtp.fuse.net. NS
Answer
smtp.fuse.net. 5 CNAME mail2.cbt.syn-alias.com.
Authority
syn-alias.com. 300 SOA dns1.p04.nsone.net. hostmaster.nsone.net. 1653399764 3600 600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0