Describe DNS/DNSSEC/プロバイダ/sannet.ne.jp here.
http://www.sannet.ne.jp/news/20100804.html
$ dig +dnssec mx mihara-med.or.jp @dns.sannet.ne.jp
--- 10 秒くらい待つと返事があった ---
; <<>> DiG 9.7.1-P2 <<>> +dnssec mx mihara-med.or.jp @dns.sannet.ne.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42364 ;; flags: qr aa rd; QUERY: 1, ANSWER: 3, AUTHORITY: 4, ADDITIONAL: 16 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags: do; udp: 4096 ;; QUESTION SECTION: ;mihara-med.or.jp. IN MX ;; ANSWER SECTION: mihara-med.or.jp. 3600 IN MX 10 recv.sannet.ne.jp. mihara-med.or.jp. 3600 IN RRSIG MX 8 3 3600 20110317083723 20110307083723 20946 mihara-med.or.jp. qQcFuMi6lxMvwCLhSJ2LbGP/jTO8P0/7wg4B7jLVbYE+qkL2fUZGcxRN fuvsNul+Cw6RsoFwNqFj3+cJ8owb+j+bQGaOsgW2gtB6ED9iOrODTXwm SYZBQaoTqdfoSZBbl76MWqiby8SDxM/aB5RD8poqCrETWQY/xZtlByVo gMY= mihara-med.or.jp. 3600 IN RRSIG MX 8 3 3600 20110317083723 20110307083723 42795 mihara-med.or.jp. bRF81f9qg1LG9IW/DwNo/omnbqewY1cFb0nThCN+NmTIN2bCAfoamsTT PNmuEWo/7n7i1pI9DmLaj64Tequ0MbZ4SPtlNfiOzliBK5li3p2mOPDi LMU9MxuAFl3sJBOVafMG+WUYA0RUVboGXZeaWqX8ReLtPN9HqG8IEJv1 gdI= ;; AUTHORITY SECTION: mihara-med.or.jp. 3600 IN NS dns.sannet.ad.jp. mihara-med.or.jp. 3600 IN NS dns.sannet.ne.jp. mihara-med.or.jp. 3600 IN RRSIG NS 8 3 3600 20110317083723 20110307083723 20946 mihara-med.or.jp. BWsmoRJdVpyKR/cOgGqoNVv00JdDbjelKYmfxGoH2UOuKZXVWLyt/I6r JidTAbaEvHUkxq7ZwBxbzq3wP3+iz6lqHz5m2tSSuJQj4RSKUi1Py38N ubJJ1UBMFg62DcbQoY7j+NsTHhptSNxII7ydLuRutWIrbXAY3kM+Yfmf GHI= mihara-med.or.jp. 3600 IN RRSIG NS 8 3 3600 20110317083723 20110307083723 42795 mihara-med.or.jp. dHJrxAxiFiz4uMwq1bs9u/oD+uihBrg41cl0SWmMQWhgQJjsj7+mwrRS xPa3iEQLFSmiE63yfc6g0CMVKfZrGjSfXeaYMRVa/B1DSZonU4Dv6avV NRIqs5Q/hAqPUYRqYHrDlNJt+X2/YQMwqkp5MHJfB0zuDTLK8dJwHKFt ob8= ;; ADDITIONAL SECTION: recv.sannet.ne.jp. 3600 IN A 134.180.49.72 recv.sannet.ne.jp. 3600 IN A 134.180.49.73 recv.sannet.ne.jp. 3600 IN A 134.180.49.74 recv.sannet.ne.jp. 3600 IN A 134.180.49.75 recv.sannet.ne.jp. 3600 IN A 134.180.49.76 recv.sannet.ne.jp. 3600 IN A 134.180.49.71 dns.sannet.ad.jp. 3600 IN A 202.216.0.22 dns.sannet.ad.jp. 3600 IN AAAA 2405:0:53::2 dns.sannet.ne.jp. 3600 IN A 202.216.0.54 dns.sannet.ne.jp. 3600 IN AAAA 2405:0:8053::2 recv.sannet.ne.jp. 3600 IN RRSIG A 8 4 3600 20110317034456 20110307034456 13101 sannet.ne.jp. hnN6TJstD9qA0Cn0vRx4Sy7EcdGdgQqrjTaEF8p7wQTM9dQ/UbLCrRA/ TzXeKTv7e4FHGjNeeq31+hmcyODO91LgGiMEUtV23xQ01iqVcAVlqZaH w21QnLB90wFc0RFKKLICB/Pyn9Ta9MwwRz71fKermu3XfrvQu0D+qInk soo= dns.sannet.ad.jp. 3600 IN RRSIG A 8 4 3600 20110314084732 20110304084732 44148 sannet.ad.jp. Kl6O7lXusaLYxmFnvJAMYgDQBgDrM3Amxl3ayevFHx/c36qy97BU+8cd oYXZgvVaLCKeRgXriwhf1wQyEl3tRujXI5toTybkCSa48Ce3B/uRcKMn dhfwedW934xB1nSpQkFH9Xhi46YEG0M4mGZW6QC6eWrXWxaMFAJ2hwJc QqU= dns.sannet.ad.jp. 3600 IN RRSIG AAAA 8 4 3600 20110314084732 20110304084732 44148 sannet.ad.jp. Fc98F/YSFBEzpEVpqqCtZwTuOUMom715mP1Yo/M5L8ydI5K8teQVtcpg Lc1IFQ8l7pMvKVm2t8mvdLjY3HoFnd/coVfG4ai0hvFxmZGmjhcHeVDk nbhTP9tRZpQggAEPaUB5ZIeCejbQMtzhEhIsSwpyWL5OUCQQnK7OcCH7 jHs= dns.sannet.ne.jp. 3600 IN RRSIG A 8 4 3600 20110317034456 20110307034456 13101 sannet.ne.jp. OWoeqLKEjHjQQ8AG8jzZGvhTQ+dTyoz4wjBt8NPOdtstG4L1T5tSqndv e1dXZ4aAQTSuSwucNbXD1758fW/gC1sKs7T7ZlfJ7oRfLbGY8wo9CnFK +lSpc7htMYHPB+wGgOkqJThGqB2vwb6NP8tjttB7WP7+nIGPoNXbgXFY DJU= dns.sannet.ne.jp. 3600 IN RRSIG AAAA 8 4 3600 20110317034456 20110307034456 13101 sannet.ne.jp. qgZs1/XRbXCRFpawJVQI9j9gU7yTEbprKi11bIgDTZO8e4g4aS1Q5Foi JeHvXc3KpCkvcxP9A7g4PPrzCGNjN/JimCyhxwkMDvrtud6zTBai1bxw Zk5gxDGmAm4YnhzMgVS1cacv4fUEqOAuEbmOxByphzyrSun5clPgOigf QWQ= ;; Query time: 46 msec ;; SERVER: 202.216.0.54#53(202.216.0.54) ;; WHEN: Mon Mar 7 19:38:34 2011 ;; MSG SIZE rcvd: 1870