Zone apex
Start of authority
Email
Serial
2026021203
Refresh
20m
Retry
5m
Expire
14d
Negative cache TTL
1h
Question and response
Question
dig mx4.sco.cisco.com. SOA
Answer
The response has no answer records.
Authority
sco.cisco.com. 300 SOA use1.akam.net. stbu-hostmaster.cisco.com. 2026021203 1200 300 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0