Zone apex
Start of authority
Email
Serial
2018032421
Refresh
3h
Retry
30m
Expire
28d
Negative cache TTL
2m
Question and response
Question
dig _spf.webex.com. SOA
Answer
_spf.webex.com. 600 SOA hns001.sjc03.webex.com. csg-ia.cisco.com. 2018032421 10800 1800 2419200 120
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0