*.pool.ntp.casjay.email has no AAAA records.
Question and response
Question
dig casjay.pool.ntp.org. AAAA
Answer
The response has no answer records.
Authority
pool.ntp.org. 1266 SOA a.ntpns.org. hostmaster.pool.ntp.org. 1772955111 5400 5400 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0