Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d
Question and response
Question
dig xsend9.email. SOA
Answer
xsend9.email. 900 SOA ns-923.awsdns-51.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Authority
xsend9.email. 172800 NS ns-1336.awsdns-39.org.
xsend9.email. 172800 NS ns-1646.awsdns-13.co.uk.
xsend9.email. 172800 NS ns-450.awsdns-56.com.
xsend9.email. 172800 NS ns-923.awsdns-51.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0