Zone apex
Start of authority
Email
Serial
520
Refresh
1h
Retry
10m
Expire
7d
Negative cache TTL
15m
Question and response
Question
dig venusmail.it-ex.com. SOA
Answer
The response has no answer records.
Authority
it-ex.com. 900 SOA ns000.d-53.net. dns-managers.iij.ad.jp. 520 3600 600 604800 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0