Zone apex
Start of authority
Email
Serial
2018103562
Refresh
3h
Retry
1h
Expire
7d
Negative cache TTL
10h 40m
Question and response
Question
dig spf.mailforce.cz. SOA
Answer
The response has no answer records.
Authority
mailforce.cz. 38400 SOA shinzon.blueboard.cz. hostmaster.blueboard.cz. 2018103562 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0