Question and response
Question
dig k1._domainkey.mc.nwtime.org. NS
Answer
k1._domainkey.mc.nwtime.org. 5 CNAME dkim.mcsv.net.
Authority
mcsv.net. 10800 SOA pdns177.ultradns.com. abuse.mailchimp.com. 2013160599 10800 3600 2592000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0