Zone apex
Start of authority
Email
Serial
3580
Refresh
4h
Retry
30m
Expire
7d
Negative cache TTL
2h
Question and response
Question
dig smtp.netcup.net. SOA
Answer
The response has no answer records.
Authority
netcup.net. 7200 SOA acns01.xaas.systems. mail.netcup.de. 3580 14400 1800 604800 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0