Zone apex
Start of authority
Email
Serial
2026021703
Refresh
3h
Retry
5m
Expire
21d
Negative cache TTL
5m
Question and response
Question
dig smtp1.us.opalstack.com. SOA
Answer
The response has no answer records.
Authority
opalstack.com. 300 SOA ns3.us.opalstack.com. hostmaster.opalstack.com. 2026021703 10800 300 1814400 300
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0