1. whois

jcf.or.jp.              60      IN      TXT     "v=spf1 a:www4663m.sakura.ne.jp mx +ip4:58.80.52.137 +ip4:58.13.125.100 ~all"

www4663m.sakura.ne.jp.  3600    IN      A       49.212.78.63

jcf.or.jp.              3600    IN      MX      10 jcf2013.sakura.ne.jp
jcf2013.sakura.ne.jp.   3600    IN      A       49.212.78.191

2. history

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