netflowservices.com.dkim.express-mail.com has no AAAA records.
Question and response
Question
dig netflowservices.com.dkim.express-mail.com. AAAA
Answer
The response has no answer records.
Authority
express-mail.com. 300 SOA x.ns.joker.com. hostmaster.joker.com. 2026022755 14400 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0