Zone apex
Start of authority
Email
Serial
1645030770
Refresh
1h
Retry
5m
Expire
21d
Negative cache TTL
5m
Question and response
Question
dig external.smtprelay.rackspace.net. SOA
Answer
external.smtprelay.rackspace.net. 300 SOA ns.rackspace.com. hostmaster.rackspace.com. 1645030770 3600 300 1814400 300
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0