Zone apex
Start of authority
Email
Serial
2002375443
Refresh
3h
Retry
1h
Expire
7d
Negative cache TTL
10m
Question and response
Question
dig spf-listserv.isc.upenn.edu. SOA
Answer
The response has no answer records.
Authority
upenn.edu. 600 SOA ipam2.nnn.upenn.edu. hostmaster.upenn.edu. 2002375443 10800 3600 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0