Question and response
Question
dig sysmail2.linecorp.com. PTR
Answer
The response has no answer records.
Authority
linecorp.com. 600 SOA ns2.naver.jp. domain.linecorp.com. 1772093537 3538 600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0