lab-ns2.rcbb.aics.ad.jp has no MX records.
Question and response
Question
dig lab-ns2.rcbb.aics.ad.jp. MX
Answer
The response has no answer records.
Authority
rcbb.aics.ad.jp. 1800 SOA lab-ns0.rcbb.aics.ad.jp. hostmaster.rcbb.aics.ad.jp. 2025122302 10800 3600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0