Zone apex
Start of authority
Email
Serial
2016050400
Refresh
8h
Retry
2h
Expire
7d
Negative cache TTL
1h
Question and response
Question
dig mail.smtp39.com. SOA
Answer
The response has no answer records.
Authority
smtp39.com. 3600 SOA ns57.domaincontrol.com. dns.jomax.net. 2016050400 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0