Is esi.co.jp Safe for Email?

[ jprs database provides information on network administration. its use is    ]
[ restricted to network administration purposes. for further information,     ]
[ use 'whois -h whois.jprs.jp help'. to suppress japanese output, add'/e'     ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'.                 ]
domain information: [ドメイン情報]
a. [ドメイン名]                 esi.co.jp
e. [そしきめい]                 にほんいーえすあいかぶしきかいしゃ
f. [組織名]                     日本イーエスアイ株式会社
g. [organization]               nihon esi k.k.
k. [組織種別]                   株式会社
l. [organization type]          corporation
m. [登録担当者]                 sg053jp
n. [技術連絡担当者]             sg053jp
p. [ネームサーバ]               ns-1182.awsdns-19.org
p. [ネームサーバ]               ns-1645.awsdns-13.co.uk
p. [ネームサーバ]               ns-975.awsdns-57.net
p. [ネームサーバ]               ns-303.awsdns-37.com
s. [署名鍵]                     
[状態]                          connected (2025/05/31)
[登録年月日]                    1994/05/27
[接続年月日]                    1994/05/31
[最終更新]                      2024/06/01 01:02:13 (jst)